Meet the mechArm: a 6-axis robot arm powered by a Raspberry Pi 4B with multiple end-effectors that can take on a variety of tasks. It comes with Python, ROS, and Blockly support. It can draw, write, and even play chess. You can control this robot via voice and app.
The mechArm comes with a stable base for easy installation on your desk. It has max payload capacity of 260g. You can find it on Kickstarter at this time.