An attachment that can added to a lawn mower to have it automously mow the lawn using gps to track its position. --
Other robots from Synthiam community

Jdebay's Gripperv4 Old Parts And New Parts
old parts and new parts make gripperv4. j update: added camera. j

Toymaker's My Little Dewey (Drone 1) New Home
What does an Inventor/Roboticist have in his design studio? - Well for me its my (Alexa controlled) favourite Movie...

Ezang's My First Video Of My Metal Arm Gripper Nov. 7, 2019
Mr. Metal arm Gripper, first video, more to come - November 7, 2019 using with the ARC software and the arduino