Japanese shop Breadboard Maniac has come up with a custom breadboard that you can use for work and play. The CakeBoard is a solderless breadboard that you can stack and connect like LEGO. In fact you can connect it to LEGO. Because.
The CakeBoard’s versatility comes from the holes on its corners. Each CakeBoard comes with four small pegs that you can place on the holes to connect multiple units. You can connect them side-by-side or stack them up. You can also use the pegs or screws to prop up the breadboard, in case you need some clearance. As a bonus, the holes happen to fit on LEGO studs. Finally, unlike most breadboards, there is no gap between the points at the center of the CakeBoard, giving you more connection options.
The only downside to CakeBoard is that it’s expensive, especially when you consider that you have to buy multiple units to maximize its potential. Pledge at least $30 (USD) on Kickstarter to get a CakeBoard as a reward.