I happened across one of WalMart's "First Choice" brand kid guitars at a thrift store for $10.00. I bought it for my grandson, but it stays at our house. (If I let it go home with him, it'd never have a full set of strings on it.) So I get to fool around with it.

It has the high action and miserable intonation you'd expect from a $10.00 guitar, so it blows as far as conventional playing goes. But it's an absolute hoot for playing bottleneck slide. It sounds remarkably funky -- a tone that would be right at home on a scratchy old 78. Since the scale length is so short, I usually tune it to open A or open E tuning (as opposed to open G or open D on a full-sized acoustic).

If you're a slide player and you should happen across a cheap little almost-toy guitar at a steal price, buy it! It won't become your main axe, but it could be a really fun occasional diversion.