I think $4.00 is too low..but $10.00 a little high..$8.00 would be more like it..depending if you want to sell them..and how well you like to make them..I know crafters do not get paid well for their time..but if you like making them and want to sell more..you can not charge what they may be worth..if there is not a copyright problem try selling them on this site..and see what happens