Build Your Own Robot Arm!
Red5’s aptly named Robot Arm helps budding Dr. Wilys work on their assembling skills. £30 (appx. $44.23 USD) gets you a kit which you have to put together to form the arm, but I don’t think it’ll require Junkyard Wars-like skills; you don’t have to solder anything to put this one together.
When assembled, the robot arm has “a maximum lift weight of 100g, opening gripper capable of grasping anything up to 1.7”