You can offer anything like points , USD , commission , etc ... but make sure it's acceptable.

This offer will last for 5 days counting from now. I will choose the offer that I think it's the best
Reply under my 'OFFER HERE FOR _' comment
You can change your offer
Plz credit me
You may not resell, claim the art as your own, or claim the original design as your own
You can treat them as your own OC . Change name , clothes , etc

Also on dA http://fav.me/d6ngzah