This is a towel hook that will fit a any standard kitchen door (19mm). It will fit on Ikea and a wide range of other kitchen brands.
No supports needed.
0.2 layer, 100% infill, 2 perimeters with 20% infill overlap worked the best for me (when printed with 3 perimeters there will be no infill, making the structure weaker in my case).
I included 6 versions, 3 with and 3 without a 4mm mounting hole.
The width of the hook is 20mm, 30mm or 40mm. I prefer to use the 40mm version because you have more "real estate" to put your towels on :-). The hook is 3mm thick, so it's well suited to print in PLA.
As always, if you like, print and use it, post a photo :-)