I know my girlfriend is always looking for knickknack dust collector shit to hang around the house (so I won't be showing her these, sorry). I'd say make a guess at how much time she has invested in each one times minimum wage, add the cost of the kit and frame. It is probably more than people would be willing to pay, but it's a starting point. You're probably better off selling them if you take custom orders, especially if she will customize them (add peoples names for instance).