Have you got a bunch of hot water bottles lying around that you just don't know what to do with? Maybe they just happen to be color coordinated and look pretty together but, blast it, you've just got too many of them?
If you're the display folks at the Italian jean maker Energie , you just slice an opening in the side of the bottle, pour in a little water and group it together with all your others on a wall as hanging vases for assorted wildflowers!
Always Frugal, Always Fabulous,
The Elegant Thrifter