Make a skull out of your collection.
What do you have a lot of? Shoes? Autographs? Star Trek Collectibles? Skulls? Arrange them in a skull shape and take a picture and send it in! (The ususal submission rules apply).
Now get to it!
UPDATE: Take your time and make something good! Winners will be selected at my discretion based on collection materials and quality of photography.
UPDATE 2: I've got all of my winners! Thanks everyone for your submissions! Stay tuned for more contests in the coming months...