So the sponsor system will go a little like this.
For each tribute you donate to the story you get one sponsor. If you donate multiple tributes, but when you go to ask for sponsorship over a tribute and either they all have sponsors or the one you would like is already sponsored, I'll determine who will sponsor it at random. If he/she who originally had sponsorship over the tribute argues about losing the sponsorship I'll automatically give the sponsorship back since I would like everyone to be happy with my story. If the other insists on sponsoring the tribute I'll either allow you two to work it out amongst yourselves or will give dual sponsorship to the tribute.
So on to how the sponsors will send gifts to the tributes. This will be determined by two ways: one the amount of tributes donated and two the expenses of that item. For each tribute one donates you will gain an amount in the currency I'll decide later. So with this currency you will be able to buy and send the object to your tribute. For each tribute one donates to the story you will receive 500 of the currency. For a review you will receive from 200-700 depending on how well you help the story. For criticism that makes the story better you'd get from 550-700. For something that encourages me to write more you'd receive 400-550, and for a review that basically says "good job" or has very little criticism that doesn't help at all you will receive 200-400.
The items that you can send will be these:
a thin blanket- 175
a small pocketknife- 350
a small tent- 550
a bottle of water- 225
any kind of medicine(please specify what the medicine is for)- 600
a weapon of your choice- 800
some Capitol food (stew or chicken, you choose) that can last two days if the tribute(s) is/are careful- 750
a big bag full of various food supplies and water- 1000
small amount of poison- 750
That's basically how the system will work. If you have any other ideas or you think it is too similar to another system let me know ASAP so I can revise it.