I thought I would give this a go and see how well it does. I'm going to run this for 48 hours and the higher the bids, the more the winner gets (i.e. extra things like chibi, sketches, full colour commission etc).

This auction is for a custom designed character, just for the winner. The winner will be able to pick whatever features they wish, i.e. gender, species, colours, markings, etc.

Opening Bid is $20
Extras - If the auction reaches...
$50 - design + full reference sheet
$75 - design + full reference sheet + full colour commission of your new character
$100 - design + full reference sheet + full colour commission + chibi
more than $100 - design + full ref sheet + full colour commission + chibi + ???? will work something out with the winner