Thanks everyone I appreciate all the feedback. I'm going to try making some loads. I don't have any pieces of foam and don't want to buy a 4 x 8 sheet but have plenty of scrap wood. So I've cut inserts from 1/4" plywood and painted them black as starters. I'm thinking of building up the centers also.
mwb, I really like that gondola, I would have bought it, my last name is really Boomer.