Comedians Jay Leno (R) and Howie Mandel attend the ceremony for the unveiling of the star for ventriloquist and comedian Jeff Dunham on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

A fan holds a license plate at the ceremony for the unveiling of the star for ventriloquist and comedian Jeff Dunham on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Comedians Jay Leno (L) and Howie Mandel pose at the ceremony for the unveiling of the star for ventriloquist and comedian Jeff Dunham on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham takes out his puppet Walter before unveiling his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Comedian Jay Leno speaks next to ventriloquist and comedian Jeff Dunham before the unveiling of Dunham's star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Comedian Howie Mandel speaks next to ventriloquist and comedian Jeff Dunham before the unveiling of Dunham's star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham poses with his puppet Walter, wife Audrey Murdick (L), daughters Bree Dunham (3rd R) and Ashlyn Dunham, and sons James and Jack (R), on his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham poses with his puppet Walter, wife Audrey Murdick (L), daughters Bree Dunham (3rd R) and Ashlyn Dunham, and sons James and Jack (R), on his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham (C) poses with Jay Leno (L) and Howie Mandel on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham poses on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham poses on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter speak before unveiling his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter speak before unveiling his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham poses with his puppet Walter, wife Audrey Murdick (L), daughters Bree Dunham (3rd R) and Ashlyn Dunham, and sons James and Jack (R), on his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham signs autographs after unveiling his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham signs autographs after unveiling his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham signs autographs after unveiling his star on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter wait for his family on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Ventriloquist and comedian Jeff Dunham and his puppet Walter pose on his star after it was unveiled on the Hollywood Walk of Fame in Los Angeles, California, U.S., September 21, 2017. REUTERS/Mario Anzuoni

Barbara Schonenberger presents Ventriloquist Sascha Grammel with the trophy for Comedy during the Bambi 2013 media awards ceremony in Berlin November 14, 2013. The annual Bambi awards honours celebrities from the world of entertainment, literature, sports and politics. REUTERS/Tobias Schwarz (GERMANY - Tags: ENTERTAINMENT)

Ventriloquist Sascha Grammel addresses the audience after receiving the trophy for Comedy during the Bambi 2013 media awards ceremony in Berlin November 14, 2013. The annual Bambi awards honours celebrities from the world of entertainment, literature, sports and politics. REUTERS/Tobias Schwarz (GERMANY - Tags: ENTERTAINMENT)

Ventriloquist Sascha Grammel performs during the Bambi 2013 media awards ceremony in Berlin November 14, 2013. The annual Bambi awards honours celebrities from the world of entertainment, literature, sports and politics. REUTERS/Tobias Schwarz (GERMANY - Tags: ENTERTAINMENT)

Ventriloquist Terry Fator and comedian Carrot Top (R) arrive for the fifth anniversary celebration of "The Beatles LOVE by Cirque du Soleil" show at the Mirage Hotel and Casino in Las Vegas, Nevada June 8, 2011. REUTERS/Steve Marcus (UNITED STATES - Tags: ENTERTAINMENT)

Taylor Makakoa (L) and ventriloquist Terry Fator arrive for the fifth anniversary celebration of "The Beatles LOVE by Cirque du Soleil" show at the Mirage Hotel and Casino in Las Vegas, Nevada June 8, 2011. REUTERS/Steve Marcus (UNITED STATES - Tags: ENTERTAINMENT)

Miss Arkansas Alyse Eady performs a ventriloquist act during the talent segment of the 2011 Miss America Pageant at the Theatre for the Performing Arts at the Planet Hollywood Resort & Casino in Las Vegas, Nevada, January 15, 2011. Eady went on to become the first runner-up. REUTERS/Steve Marcus (UNITED STATES - Tags: ENTERTAINMENT)

April Brucker auditions for the performance-art show "Puppetry of the Penis" in New York April 14, 2009. Brucker was the first woman to ever audition for the show and as a ventriloquist, believed it was an actual puppet show. Actors trying out were given a quick class on the different tricks to contort their genitals and then were individually tested to see if they had the skills. REUTERS/Chip East (UNITED STATES SOCIETY)

An opposition supporter holds a poster depicting Venezuela's President Hugo Chavez as a ventriloquist in control of a puppet, represented by anti-corruption official Clodovaldo Russian, during a protest in Caracas June 7, 2008. The protest was organized after Clodovaldo Russian unveiled a blacklist that could bar key opposition candidates from running in upcoming elections. In the poster, the puppet asks, "What about the Constitution" and Chavez says, "Keep talking." REUTERS/Edwin Montilva (VENEZUELA)

An opposition supporter holds a poster depicting Venezuela's President Hugo Chavez as a ventriloquist in control of a puppet, represented by anti-corruption official Clodovaldo Russian, during a protest in Caracas June 7, 2008. The protest was organized after Clodovaldo Russian unveiled a blacklist that could bar key opposition candidates from running in upcoming elections. In the poster, the puppet asks, "What about the Constitution" and Chavez says, "Keep talking." REUTERS/Edwin Montilva (VENEZUELA)

A ventriloquist and her dummy perform during the Great American Trailer Park Pageant in New York November 17, 2005. Contestants across the country showcased a vast array of talents for a panel of judges and talk show host Jerry Springer during the competition. REUTERS/Shannon Stapleton