Are you asking for suggestions on how to use a shower caddy for a different purpose other than in the shower, or
are you asking how to mount it in a shower stall?
What type of caddy do you have - plastic, metal...?
Posting a picture of it with its dimensions, would illustrate what you have to work with.
Not sure if this is what you meant, but here are some ideas for repurposing a shower caddy!
I used a corner shower caddy to be a corner basket in my laundry room for mismatched socks. I just had to create a bendable front out of thin plexiglass so the socks weren't falling. An idea though to use one as a basket.
Hang it outdoors and put in small pots of herbs to cook with or flowers to brighten your porch.
You can turn it into a planter to hold small pots. I saw a post recently.
Pam: maybe this will help
They work great for added storage in a shed or garage. Just keep in mind that some are plastic and don't hold much weight.
You could use it for towel storage if you roll them up.
You could maybe try and put some rock filler underneath and level them all out.
Hi Pam: Besides the obvious use in the shower, you can use it as a plant holder :) Or, you can use it to hold your make up. Other than that, I don't know right now :)
Some people use them to hang plants on their back yard fences or decks. They are very handy for that!