I am excitedly "collecting" items for my (first eva) contest prize. Bring on the entries, I will draw names after the contest closes Feb.29. If you are really stuck on ideas here's one—and I might add that this is very embarassing for me and I am very glad I do not have a photo of it—when I was about 7 I collected eraser shavings. Seriously. Not a highlight of my youth, but I blame it on a particularly non-attentive second grade teacher. She was not very engaging. To put a positive spin on it I will call it my deconstructionist period. Since I don't have a photo of that very early collection I will leave you with an image from Brita Hansen's crayfish collection.
Please note: I (almost absolutely) guarantee there will be no eraser shavings in your prize (probably definitely.)