I bought a Lubitel 166 for a bargain 3 at a camera shop a few years ago, thinking it may be good for some fun of the 'Lomo' kind.

But to my horror it was very good, a really good lens, much too good for 'Lomo'. Yes, it is plastic, it is crude, but the shutter is accurate and the whole thing is tiny. The only downside is the focusing, it does need good light, but you can't have everything.