I don't know about alternative spots really..but I think you can use your toes with any meter, just like your fingers.
Don't quote me on this, but I think there are special meters/lancet devices for using sites other than toes or finger tips.
I remember when I was like 13 or something, I got this HUGE machine that allowed me to use my forearm and a few other alternative spots. You would rest it on the spot and then press a button and it would actually pull up your skin before poking you. It was crazy. It would then tell you what your blood sugar was.
I remember being told I had to use that machine to use blood from my forearm because it would give me a slightly different reading if I used blood from my forearm with my regular meter.