MEARM - POCKET SIZED ROBOT ARM (DELUXE KIT): $54.99 https://store.hackaday.com/produc...deluxe-kit
Deluxe version of the MeArm. A Cheap, Small, Open Source Servo Controlled Robot Arm.
CRAZYFLIE 2.0: $89.99 - https://store.hackaday.com/products/crazyflie-2
The Crazyflie 2.0 is a versatile flying development platform that only weighs 27g and fits in the palm of your hand
BULBDIAL CLOCK: $49.99 - https://store.hackaday.com/products/bulbdial-clock [hackaday.com]
This clock kit uses colored LEDs to cast shadows which make up the hands of the clock. This is the same concept as a sundial, but much more accurate and with no need for sunlight.
Many more ... https://store.hackaday.com/