Hey!
We have a heating pipe that is not far enough from the wall so that the standard stuff that you can buy did not fit in there.

I only found the single pipe rosettes but most of the time dirt will stuck between them and i hate it.

So i made this one that fits on both pipes at the same time. No dirt gap between. 

print it 2 times - take the Pins and put them together. They hold tight. 

I used PLA.

Feel free to costumize and adjust it when your pipes are not fitting in there.