My guesses.
Panda - Jack Black
Doughnut - James Marsden (based on Sonic's nickname for his character in the Sonic Movie)
Bagpipes - Loraine Kelly
Poodle - Paul O'Grady
Penguin - Robin Lord Taylor
Robot Rabbit - Bugs Bunny
Lionfish - Denise Gyngell
Chandelier - I'm avoiding the obvious, so I'll say it's Kylie Minogue
Traffic Cone - Jenson Button
Firework - Liam Howlett
Snow Leopard - Maisie Williams
Mushroom - Mario? We're gonna copy the Americans when they pulled a certain Kermit The Frog out of the bag?
My guesses are awful, hopefully I'll be more on point when the Show starts.