Information for The Big Bash at Polka Theatre for Children, Outer London (Kids show). Join us for Polka's Family VIP Party this holiday season! The Big Bash is Polka's annual family fundraiser, raising money to provide accessible and inclusive shows and workshops for children with additional needs and disabilities. Enjoy a full afternoon of festive fun for all ages! Join us for face painting, glitter tattoos, balloon artists, a silent disco, and even a visit from Santa! We will also have a delicious festive buffet, including bubbles for the adults, and tickets include entry to one of our winter productions.