Perfect for magic tricks, escape rooms, and slightly unorthodox birthday parties -- this seemingly innocuous, sealed deck of cards contains a secret. When the puzzle is solved, the deck is thrown in the air, tossed to a friend, or dropped a short distance. Freefall is detected, and it beeps a secret coded message.
Build a creepy, glowing test tube display... if you dare. A Feather microcontroller makes the UV LEDs shine to create dazzling effects in the fluorescent pigment-and-water filled test tubes. Easy-to-assemble black iron pipe forms the base of this labware set. The perfect prop for your own haunted house or creepy laboratory.
Sandblaster is a variation on Blue Buggy remixing the original Cox International gas-powered sand buggy - scaled-down, converted to electric, and 3D printable! You can use it to explore obstacle avoidance, autonomous navigation, driverless vehicle design, or assisted Remote Control. Or… build in the morning and race in the afternoon!