Small C-Clamp with Cap

I searched for a clamp to get some christmas led lights attached to our terrace roofing without drilling holes. What I found was the nice design from [charliearmorycom](https://www.thingiverse.com/thing:21941).
I added a cap for the screw and glued some rubber (of an old bicycle tube) to the insides of the clamp for better grip. I'm very happy with the result - the clamps feel strong enough to withstand the hardest winter storms.