Make the cupcake wrapper from poster paper stuck on a laundry basket that has its bottom cut out. Hold it up with suspenders. Use fleece as the icing and hot glue randomly to scrunch it up. Stick pom pom balls on the fleece as the sprinkles. SO FUN!
Homemade Costumes that Really Won Prizes in Local DIY Halloween Costume Contests! The Queen of Hearts should be Alice instead though. In back story Alice and the Hatter were in love. It is only ever actually stated in one version of the movie.