Hybrid Gurus . . . How Would You Repurpose These?

[Lyd]

Excuse the junky phone pic . . .

I have a bunch of these bottles--and more coming into my house all the time (they come with Ian's medication, so about three bottles a month). I can't really think of a use for them, but they are nice, sturdy bottles, and I think it's a shame to just throw them out. But, seriously, I'll be overrun with them before long if I don't think of a good way to use them. They've only had water in them, so there are no worries about any kind of contamination. They are about 4" tall and have a 5.5" diameter, although they are oval, not round.

So, tell me, what would you do with these beauties?