Heres a quick pic of a salvage droid Ive painted up:
A Grubby Salvage Droid
Although hes a 28mm scale miniature, he works perfectly for a heavy salvage droid in 15mm scale and his hammer could probably squash an unfortunate hero flat!
I went a bit overboard with weathering but it turned out quite nicely. Ive also found some plastic Mechwarrior vehicles which are just abut the right size for 15mm gaming so now have some more high tech armour for Slippery Jim to avoid. I plan on painting them up as a League peackeeper unit which will allow me to play some larger games following the Special Corps attempts to deal with Count Cassitor and Angelina!
All the best!