Hi! I have bought plastic molds of mermaids for soap making. They are detailed in design and I would like to paint just a few details on them once they are made. To display them I would like to get some boxes with cardboard on the bottom and 1/2 way up the sides and a plastic top that exceeds the cardboard sides. I checked with papermart and did not find what I was looking for. What other companies could I try to look for them? Thank you so much for your help!!