I love this UMBRA - Sling Flexible Sink Caddy!  It can be bent to use and fit on any sink.  It states it’s for the kitchen, but I’ve been using it in my shower.  I have an organizer/shower caddy that doesn’t hold my bar soap or razor.  All I had to do was bend it to around the top portion of my shower caddy and it fit perfectly and solved the problem!  Stays in place and is easy to clean, grata quality.  I will be buying more for my sons shower.  Hope to find more color options.