Magnetic Sand Timer Member Get creative and discover the

Get creative and discover the wonders of simple engineering with Trestle Tracks

18 oz | Dishwasher Safe | Made in the USA

Herzog’s photography focuses on both the artistic and scientific aspects of Jansen’s creations

and other aquatic creatures with this sea-colored mug

Magnetic Sand Timer Member Get creative and discover theWhat's the secret? A powerful rare earth magnet is hidden in the base. Set the device on its stand and watch the metal grains arrange into a beautiful, spiked sculpture. Each time you turn it over, a different pattern is formed as the ferrous material is drawn into the magnetic field. Not intended as a real time keeping device; actual times will vary.