My girlfriend bought a basket for our bathroom.
Ikea thought it's a good idea to mount it via cupping vessels.

To be honest: It sucks!
Every 2nd time while showering, this thingie slackened itself and landed on my feet.

Our bathroom got renovated some months ago and i don't want to drill holes into the brandnew tiles.

So i bought some glue pads and built some adapters, without changing the look too much.

In Germany the pads are called:BK 43-2 (when you buy them at a hardware store) orPB43-2 (when you buy them directly at the manufacturer).
Links:
https://shop.niewiederbohren.de/ersatzteile/befestigungsset-pb43-2
or
http://www.hornbach.de/shop/Ersatzbefestigungskit-BK-43-Nie-wieder-Bohren-incl-2-Adapter/8156956/artikel.html

The basket itself:
http://www.ikea.com/de/de/catalog/products/80252621/?cid=1LfmmalFgrLgV6h70c8k4SBOYv4xRt

You will need two M4 nuts, to press them into the printed knobs.