There is a compound named tricyclo[126.96.36.199]decane also known as twistane. This model features 13 intersecting twistane units. Do you see all of them? The whole thing may also be seen as consisting of several identical six-membered rings in twist boat conformation. By the way, how many of those rings are there?
Another model, the Seed Of Twist, is on the same topic of fusing rings. It deals with nine identical four-membered rings. See https://www.shapeways.com/product/VNH8RA4AV/seed-of-twist-pendant