Looks good. Might keep my eyes peeled for one similar!
I bought similar holders from Home Depot a few years ago. They were less than $5 and had double sided tape. I glued them on with Silicone Sealant. I use 1 for a bar of soap, and the other for a razor. A great , neat, clean way to keep stuff in your shower stall.
( I HATE Home Depot, but I have never seen them elsewhere)
They indeed would be a nice item to have in the shower !
I love when people come up with cheap ideas like this. We have so many clever members!