Headset / Headphone Holder with cable clip for PowerStrips

I needed to glue a headphone holder to my shelf and made one that fits one "tesa powerstrips" glue pad. Those are ubiquitous in Germany and it works pretty well.

I know it is very bad to roll the cable like in the photo, but I do it like that anyway. To remove the need for folding the cable into the loop, the end of the cable can be clipped into the holder.