LED strip clip.
Simple and works very well. Screws on one side only, so very compact. fits 10mm strips.
Do not attempt to print on its side, screw will split the layers and crack the print…..
I printed 24 of these all at once with no problems. Even that small tip had no problem sticking to the bed with no brim.
Update
See my remix of this strip, designed for mounting 2 parallel strips.
https://makerworld.com/en/models/492531
And If you have a minute, check out my other models!