There are two upcoming contests that sound like a lot of fun.
The first is the third annual Translations in Tupperware Global Design Contest. Consumers and designers are challenged to create a piece of art or unique functional object using tupperware. Categories include Fashion, Utility Objects, or Free Form. You can see the winners from previous years here.
The second is Craft Magazine's Stitch N' Pitch Contest. This competition celebrates all things needle arts and baseball. There is more about Stitch N' Pitch at The National Needle Art's Stitch N' Pitch. Contest rules and how to enter are here.