A vendor prepares a traditional Trdelnik sweet pastry in Prague, Czech Republic, April 19, 2018. REUTERS/David W Cerny 

A vendor prepares a traditional Trdelnik sweet pastry in Prague, Czech Republic, April 19, 2018. REUTERS/David W Cerny 

A vendor prepares a traditional Trdelnik sweet pastry in Prague, Czech Republic, April 19, 2018. REUTERS/David W Cerny 

A tourist looks at Candy lollipops on sale in The Tower of London souvenir shop in London, Britain, April 19, 2018. REUTERS/Peter Cziborra 

Candy lollipops are seen for sale in The Tower of London souvenir shop in London, Britain, April 19, 2018. REUTERS/Peter Cziborra 

Traditional candies are displayed for sale at Dulces Albanes candy store in Santa Tecla, El Salvador April 18, 2018. REUTERS/Jose Cabezas 

Marzipan decorations are seen at L. Heiner confectioner's production facility in Vienna, Austria, April 18, 2018. REUTERS/Heinz-Peter Bader 

Handmade candies are on display at a confectionery shop in central Kiev, Ukraine April 17, 2018. REUTERS/Valentyn Ogirenko 

An employee works on a candy in a shop, which sells handmade confectionery in central Kiev, Ukraine April 17, 2018. REUTERS/Valentyn Ogirenko 

An employee works on a candy in a shop, which sells handmade confectionery in central Kiev, Ukraine April 17, 2018. REUTERS/Valentyn Ogirenko 

An employee works on a candy in a shop, which sells handmade confectionery in central Kiev, Ukraine April 17, 2018. REUTERS/Valentyn Ogirenko 

An employee works on a candy in a shop, which sells handmade confectionery in central Kiev, Ukraine April 17, 2018. REUTERS/Valentyn Ogirenko 

Girls observe while a man makes candy in a shop which sells handmade confectionery at a shopping centre in Bangkok, Thailand April 16, 2018. REUTERS/Soe Zeya Tun 

A man shows handmade candies in a shop which sells handmade confectionery at a shopping centre in Bangkok, Thailand April 16, 2018. REUTERS/Soe Zeya Tun 

Jars of handmade candy are seen in a candy shop at a shopping centre in Bangkok, Thailand April 16, 2018. REUTERS/Soe Zeya Tun 

U.S. President Donald Trump's son, Donald Trump Jr. and Republican congressional candidate Rick Saccone (R), tour the Sarris Candies chocolate shop with manager Norm Candelor (C) as part of a White House effort to salvage the Saccone campaign in Tuesday’s special House election in western Pennsylvania in Canonsburg, Pennsylvania, U.S., March 12, 2018. REUTERS/David Morgan 

A Democratic Party donkey icon is seen in a candy shop near the watch party for New Jersey gubernatorial candidate Phil Murphy in Asbury Park, New Jersey, U.S., November 7, 2017. REUTERS/Dominick Reuter 

A Democratic Party donkey icon is seen in a candy shop near the watch party for New Jersey gubernatorial candidate Phil Murphy in Asbury Park, New Jersey, U.S., November 7, 2017. REUTERS/Dominick Reuter 

A selection of homemade and regionally sourced bread is displayed at Steirereck restaurant in Vienna, Austria, November 3, 2017. REUTERS/Heinz-Peter Bader 

Instagramer SHIHO and her friend look at their mobile after taking photos of Anywhere Door's 'Cotton Candy Ice' during the Photogenic Sweets Festa at a shopping mall in Tokyo, Japan, September 15, 2017. REUTERS/Toru Hanai 

Instagramer SHIHO and her friend take a selfie with Anywhere Door's 'Cotton Candy Ice' during the Photogenic Sweets Festa at a shopping mall in Tokyo, Japan, September 15, 2017. REUTERS/Toru Hanai 

Vendors display candies as Palestinians shop in preparation for the Eid al-Adha festival in in the West Bank city of Nablus August 31, 2017. REUTERS/Abed Omar Qusini 

A butcher prepares a piece of meat at the Boucherie St Francois butcher shop in the old city of Nice, France July 28, 2017. REUTERS/Eric Gaillard 

Chocolates are offered at the factory shop of Swiss chocolate manufacturer Aeschbach Chocolatier AG in Root-Luzern, Switzerland July 21, 2017. REUTERS/Arnd Wiegmann 

Chocolates and chocolate filled candies are exhibited for sale in La Giralda chocolate shop in Mexico City, Mexico, July 21, 2017. REUTERS/Edgard Garrido 

Chocolate filled candies are pictured in La Giralda chocolate shop in Mexico City, Mexico, July 21, 2017. REUTERS/Edgard Garrido 

A bakery worker prepares hand-made chocolate at Big Bang Candy Lab shop in Sao Paulo, Brazil July 20, 2017. REUTERS/Nacho Doce 

A bakery worker prepares hand-made chocolate at Big Bang Candy Lab shop in Sao Paulo, Brazil July 20, 2017. REUTERS/Nacho Doce 

Hand-made chocolates are seen on display at Big Bang Candy Lab shop in Sao Paulo, Brazil July 20, 2017. REUTERS/Nacho Doce 

M&M chocolate candies are seen in dispensers in a shop in New York City, U.S., July 20, 2017. REUTERS/Mike Segar 

M&M chocolate candies are seen in dispensers in a shop in New York City, U.S., July 20, 2017. REUTERS/Mike Segar 

Assorted Hershey's chocolate candies are seen displayed for sale in a shop in New York City, U.S., July 20, 2017. REUTERS/Mike Segar 

M&M chocolate candies in a special container are put up for sale in a shop in New York City, U.S., July 20, 2017. REUTERS/Mike Segar 

Customers shop at the M&M chocolate candy store in New York City, U.S., July 20, 2017. REUTERS/Mike Segar 

M&M chocolate candies are seen in a dispenser in a shop in New York City, U.S., July 20, 2017. REUTERS/Mike Segar 

Cocoa beans and chocolate bars are displayed at 'Minimal - Bean to Bar Chocolate-' shop in Tokyo, Japan July 20, 2017. The bean-to-bar chocolate manufacturer oversees the chocolate production from sourcing the cacao beans to making the chocolate bars in the shop. REUTERS/Kim Kyung-Hoon 

Boxes containing hand-made chocolates are displayed at Marta Navarro's chocolate shop in San Jose, Costa Rica July 19,2017. REUTERS/Juan Carlos Ulate 

Hand-made chocolates are displayed at the Puyricard chocolate factory in Puyricard, France, July 18, 2017. REUTERS/Jean-Paul Pelissier 

A girl picks candy at shopping mall in Vina del mar, Chile, May 14, 2017. REUTERS/Rodrigo Garrido 

A dog enjoys an ice lolly given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico April 9, 2017. REUTERS/Carlos Jasso 

A dog enjoys an ice cream given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico April 9, 2017. REUTERS/Carlos Jasso 

A dog waits for its ice cream given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico April 9, 2017. REUTERS/Carlos Jasso 

A dog looks at an ice cream at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico, April 9, 2017. REUTERS/Carlos Jasso 

A dog enjoys an ice cream given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico, April 9, 2017. REUTERS/Carlos Jasso 

A dog eats an ice lolly given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico April 9, 2017. REUTERS/Carlos Jasso 

A dog enjoys an ice cream given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico, April 9, 2017. REUTERS/Carlos Jasso 

A dog looks at an ice cream at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico April 9, 2017. REUTERS/Carlos Jasso 

A dog eats an ice lolly given by its owner at an ice-cream shop where ice cream is designed especially for canines in Mexico City, Mexico April 9, 2017. REUTERS/Carlos Jasso 

Portuguese egg tarts at the Pasteis de Belem bakery in Lisbon, Portugal, May 5, 2016. REUTERS/Rafael Marchante 

Macaron chocolates are displayed at the "Le Salon du Chocolat - Chocoladesalon" chocolate fair, in Brussels, Belgium, February 9, 2017. REUTERS/Yves Herman 

Chocolates are displayed at the "Le Salon du Chocolat - Chocoladesalon" chocolate fair, in Brussels, Belgium, February 9, 2017. REUTERS/Yves Herman 

Chocolates are displayed at the "Le Salon du Chocolat - Chocoladesalon" chocolate fair, in Brussels, Belgium, February 9, 2017. REUTERS/Yves Herman 

Chocolates are displayed at the "Le Salon du Chocolat - Chocoladesalon" chocolate fair, in Brussels, Belgium, February 9, 2017. REUTERS/Yves Herman 

Chocolates are displayed at the "Le Salon du Chocolat - Chocoladesalon" chocolate fair, in Brussels, Belgium, February 9, 2017. REUTERS/Yves Herman 

Chocolates are displayed at the "Le Salon du Chocolat - Chocoladesalon" chocolate fair, in Brussels, Belgium, February 9, 2017. REUTERS/Yves Herman 

A Syrian refugee boy walks behind a cotton candy vendor at al-Rawda refugee camp in the Bekaa valley, Lebanon November 24, 2016. REUTERS/Ali Hashisho TPX IMAGES OF THE DAY 

Street vendor sells candy floss as people visit tombs of relatives and friends at 'Nueva Esperanza' (New Hope) cemetery during the Day of the Dead celebrations in Villa Maria del Triunfo on the outskirts of Lima, Peru, November 1, 2016. REUTERS/Mariana Bazo TPX IMAGES OF THE DAY

A sign inspired by Republican Presidential candidate Donald Trump is pictured at It's Sugar candy shop in Pasadena, California U.S., October 30, 2016. REUTERS/Mario Anzuoni 

Mints inspired by Republican Presidential candidate Donald Trump and Democratic Presidential candidate Hillary Clinton are pictured at It's Sugar candy shop in Pasadena, California U.S., October 30, 2016. REUTERS/Mario Anzuoni 

Rolls of toilet paper depicting Republican Presidential candidate Donald Trump and Democratic Presidential candidate Hillary Clinton are pictured at IT'SUGAR candy shop in Pasadena, California U.S., October 30, 2016. REUTERS/Mario Anzuoni