A few more that occurred to me today (it was slow at work) :grin01:

Fill them with small rubber snakes, frogs, etc. Make battery operated mobiles and sell them on Ebay, what herp lovin' Mama wouldn't want one of those for her new bundle of joy!

Fill them with aspen or sani chips, mark the lids with a ? and set them on your table at the next expo. Watch them disappear.

Construct the world's tallest free standing deli cup tower. Call "The book of records" people, not the brewers. :cheers:

That's totally going to give me nightmares now.

You could use them for.....erm......stool samples? :sidestep: :grin01:

Do you go fishing? You could use them to breed flies and to keep maggots in. :shrugs:

I thought of a couple more...

Use them to store your rock collection (or start a rock collection! lol)
Give them to the neighborhood kids and say their specialy designed mud cake forms.
Tie them to your feet as use them as mini-stilts - sell them to people as such.
If you have guppies, use them to hold the fry to prevent the bigger fish from eating them.
Or, you could string several of them together and hang several strands of them from doorways like the beaded screens/curtains.

Jenn