Crowd Supply
Crowd Supply is a launchpad for open hardware, hackables and high-end goods that embrace the principles of open design. It is the only platform of its kind to be endorsed by the Free Software Foundation for respecting the privacy and freedom of its users, and the only crowdfunding platform where every funded product has successfully been made and delivered to backers.
Featured Products by Crowd Supply

D-MARK Programmer Clamp
Designed to be used with any AVR programmer to program the ATTiny84A transparent line driver.

D-MARK Stepper Motor Driver Module
Slots into the D-MARK Controller Board and can drive 4- to 8-wire step motors up to 2A.