Hi there
Just thought I would let you know I've started selling my own water bottle holder (designed to fit the Living World bottle) on my website which is a lot cheaper than Living World's own bottle holder product.
My website is
Hamster Homes - Natural Homes & Accessories for Small Pets
Here is the link to the bottle holder itself:
Hamster Homes Shop - Bottle Holder for Living World Small Pet Glass Water Bottle
If you're good at DIY, you could make something similar?