At first glance, it looks kind of cool, but it really makes me think ways to accomplish the same goal with normal house-hold items. When I was a kid growing up, we didn’t need any attachements or fasteners to make cardboard forts. We just used a pen/marker and a knife/scissors to cut out the doors and windows, etc. I fyou wanted something to open/close, you just fold the cardboard. I think simple
![MakeDo, a construction set with just the connectors](https://cdn-ak-scissors.b.st-hatena.com/image/square/ceb0647e6601fbcc946934e5fa6410b0898fc105/height=288;version=1;width=512/https%3A%2F%2Fi0.wp.com%2Fmakezine.com%2Fwp-content%2Fuploads%2F2010%2F12%2Fmakedogeodome.jpg%3Ffit%3D600%252C450%26ssl%3D1)