This connects two CDs together. A good way to reuse old CDs or DVDs. You can make a rigid hexagonal grid or let parts swing freely.

The disk need to bend slightly to fit the connector. I wouldn't recommend this for disks with any useful data. 

There's also a double-height version that connects two disk to two disks, in case you want it.

Tested with Prusament black PLA, but any PLA should work.