SuperMag is a magnet construction kit and it’s lots of fun. I have even written a webpage about it with lots of examples, tips, and tricks. SuperMag is similar to GeoMag, which appears to be somewhat more widely known. The main difference is that SuperMag has two different lengths of bars which makes it possible to build a larger variety of structures without resorting to the panel approach GeoMag has taken. Not that I’m saying that GeoMag is bad – they’re both great, just different.