That would be an interesting kind of bids ProfMacandCheese if people are interested we could do that ... but there must be any people interested in that method ...All bitcoints that were outbidded would return to their owners after the auction was over or after the bigger bids were two times higher ...
I have attended auctions for many years. People bid more if they see the competition.
You could post a payment address and let the community decide.
I am a possible bidder. I am collecting funds for a consortium. You can view how well the collection effort is going on the blockchain.