Oxygen Tubing

[babylonica.livejournal.com]

I have an oxygen machine that I use at night. Every two weeks I have to change the tubing and plastic container that holds water, so I have about 3 50ft clear tubes. Is there some sort of thing I can do with this clear plastic tubing? One idea I had was to fill it with colored sand and make little bracelets but that's a little young for me, I'm 24.

The tube is very much like this:

Thanks for the tips if there are any :D