Hey all, I've done this before, but that was awhile back, and I'll be doing it again:
I'm going to be designing custom skins by request, and all I ask in return is a donation to my PayPal. Most designs will likely only be $2USD, but if something is complicated and is going to take more than an hour of my time, it will be $5USD. If it's extremely simple (ex. no shading, or a quick alteration of Steve) the price is only $1USD. All requests need to be posted here, in as much detail as possible.
Try to include a picture of your design, if possible, and be descriptive. I'll include in-game images of completed designs, as reference for my style and ability.