This is Blue Bug, not my first robot but the first one I am posting here... The body was made using a couple of old DVD's.
I used the herbie circuit from the book Junkbots, Bugbots and bots on wheels but made a PCB instead of free forming it. For motors I converted two servos that I already had to work as simple gear motors.
I mounted the phototransistors to make it look a bit more bug like, this has the added benefit of making them easy to adjust...
The tactile sensors in front are made from a guitar string.