Heart Picture frame, hinged

This is at least the 9th attempt at a hinged heart picture frame. I designed this for my 2 year-old grandson who was fascinated with grandma's heart necklace. The photos should be approximately 22mm square. I use thin piece of plexiglass from another cheap frame that I cut to the same size to seal with model airplane glue so the photos are protected from slobber, milk, the bathtub, etc. He loved it! The hinge is huge so it won't break right away but I still doubt it will last more than a week. I might try to print another version from PETG for durability.