Well, more like video game ends. Another random project on testing the limits of the beads, and no, they sadly don't make very good bookends as they're very flimsy and bad at supporting any kind of weight. Had I made them the way I originally envisioned with a third wall on the side, they probably would have gone over a little better.
But luckily, game cases aren't very heavy, so they're serving their purpose better now that I glued a piece of heavy paper around the back of them. Should I ever get some generic metal book ends, I'll just prop them up along side them for decoration.