It's not uncommon to see Mr. Android and Sir Arduino team up in the world of homegrown robotics, but Squirt has managed to hop out of the me-too crowd with a downright charming control scheme (and even more charming looks). Put simply, this water gun robot was designed to "water plants and chase away raccoons," but from a broader perspective, the creator was looking to demonstrate how robotics could be used in small irrigation and well systems. Better still, this is far more than just a robot that's controlled remotely via smartphone; if you switch it into 'guard mod