Meet the RobotGeek Antsy: an Arduino compatible hexapod with 3 servos that can respond to light and express itself. It is an open source kit, so you can 3D print components for it or program how it behaves. You get an IR gamepad to control the robot wirelessly.
Antsy can wiggle, wave, and do a whole lot more. It has I/O ports for expansion. The kit comes with Geekduino, buzzer, light sensors, LED drivers, and everything you need to get started.