Put in some Christmas themed craft foam shapes like presents, a reindeer and Santa, as well as some small craft gems, pieces of ribbon, sparkly pom poms, craft foam circles, or anything else you might have in the craft drawer. (viewsfromastepstool.com)
But an Angry Birds mobile with foam shapes? (rookiemoms.com)
Just drop the flushable foam shapes into the toilet and let kids aim. (pottyscotty.com)