I'd imagine we could all donate to one account and make a list of who donated and the amounts. Then we could give the donators the ability to create the conditions for each piece of the pie.
An example would be if I donated 100TBT and let's say TeaBagel donates another 100TBT. Then we'd have 200TBT to hand out which we could disturb 50 each. For every 50TBT, one of the donators will be picked to choose a condition for winning that reward. So I could be like "for this 50TBT you must be the 11500th poster and say something silly". Of course with more donations, we could make the prizes greater and greater and hopefully make sure this thread doesn't die.