Hhmm hours...I'm not sure. Once I have a process it might be 10-15 hours.

I do sell them. I see them as labor, material, and art. So I try to cover the cost of material for sure, and I also try to set an hourly rate for my labor, and then I treat it all like art....meaning that I cant set a hard price. I have a minimum, but I prefer to do auctions.