We now offer the handy little Arduino and Breadboard Holder that comes in the Sparkfun Inventor's Kit. Because this new version uses screws instead of the plastic clips, any board with standard Arduino mounting holes will fit. That includes: Arduino Mega R3, Arduino UNO and the Arduino Leonardo. This prototyping holder includes 2 screws for mounting your favorite dev board. Here is the self-adhesive breadboard that fits this plate. Note that the Arduino and Breadboard in the photo are for illustrative purposes only and are NOT included.