I have a bit of a fascination with all things Steam/Pulp, the old John Carter of Mars stuff and the like. Just a while ago I was wasting time (that should have been spent painting) surfing the web when I stumbled across this litle gem from Lead Bones;
They carry a line of 15mm and 28mm Sci-fi and Pulp that looks very interesting, and the prices seem very reasonable. Take a look.
If you go to Recreational Conflict you will find even more weird and wonderful models like this:
and stranger still (in the 1970's Cops range from Killer B) it looks as if they have modelled "Carl" from Aquateen Hunger Force:
They have a good selection of other manufacturers and ranges, some of which I have not heard of previously.