I'm rather fond of the old Fisher-Price Little People, but my kids don't play with them. I think a shadowbox display like this could be a fun way to keep them around. (The Little People, not just my kids.
They don't make them like the old Tonka trucks. I had one of these as a kid and I put mine through daily torture and it still never broke. These old Tonka trucks definitely out rank the current plastic ones. 'Like' if you had a metal Tonka truck!