Does anyone remembers Oskar's Matchboxes? The solver had 5 matchboxes with a square shell and a box attached to it at different spots from piece to piece, and then they had to be put them together so all 5 boxes would fit inside another matchbox. It was a very interesting puzzle with 4 cavities to store small items inside and people had fun finding multiple ways to put the boxes together. It was fairly popular and not the only one of it's type! Matchbox Play Six by Olexandre Kapkan upped the cou...