Here's one of mine with the Perry farm house, a GW Kroot and a Perry AWI Redcoat. No they don't all belong together, but a 1700's version of Falling Skies might be a fun game. Even though I don't think a round ball from a Brown Bess would do much to an alien mech.
I did magnetize it, even though techinally you could just slip the arms in and out of the slots. I ended up cutting metal squares and gluing them to the body with the magnet in the arms. It works pretty well expect the big gun does want to point up unless I rest it on the leg. And the heat ray also wants to only hang low because of the extra weight.
Now to do the other nine assult walkers and six scouts....