Neodymium magnet holder

I had some 1/2'' neodymium magnets sitting around my house, and a printer to mess with at school, so I put the two together to get this! After I printed it, I immediately put in the magnet and squeezed the sides, so it cooled and hardened around the magnet. It hasn't fallen out yet, so I think it works!
When I printed it, I had some problems (initially). I printed it upside down, so I wouldn't have to use supports, but this made the magnet-holding section sorta messy. I was using a Replicator 2