I admit, this isn't an original idea. I stole it off of Facebook, lol.
But anyways, choose one thing that you could have an unlimited supply of. The catch? The next poster gets to provide a condition. So, after my post, everyone that posts should provide a condition for the previous person's item, and then come up with their own item. To keep things easy, try and include a quote of the item you're providing a condition for.
EXAMPLES:
Person 1's item: "Onions"
Person 2's condition: "...instead of contact lenses"
Person 1's item: "$100 USD bills"
Person 2's condition: "you get sent back in time to when only coins of precious metal had worth"
Ok, I'll start:
Pizza