Shower caddy, low profile with hooks.

thingiverse

I built this for my RV, which has tiny showers that really test your patience. It's designed to hold three 8-ounce bottles at a time, giving you ample space to stash your essentials. I also added a couple of hooks that can be easily glued on, perfect for hanging shower puffs within easy reach. To keep things low-key, I plan to use water-resistant command strips to attach it securely in place.