The Growing-Sand™ Time-Glass offers a fun desktop diversion.
Flip it over and watch the grains of iron stack up in seemingly impossible formations thanks to a magnet embedded in the wooden base.
The craggy configurations of the iron filings eventually build into an ordered hemisphere with a spiky surface. Like your favorite movie, you can enjoy watching the Growing-Sand™ Time-Glass over and over again.
Do note that this item is not meant to be used as an accurate time measurement device. The length of time for sand fall-out varies.