Here is another educational robot kit that you can use to build and customize your own robot. The HEXBUG VEX IQ Robotics Construction Set comes with color, bumper switch, touch LED, and other sensor. Its brain has 12 input/output ports. You get over 750 pieces to build your robot. You can program the robot using Modkit for VEX or ROBOTC.
This kit can be used to build unique robots. Just snap together pieces to get started.