I recently ran across some really neat miniature bases at Iron Halo. They sell both full bases as well as inserts to put inside the standard bases you already have. I think that I’m going to get some for my warjacks, warcasters and solos; even though they are inexpensive I think it would be too much to do units of eight to ten troopers for me right now. Iron Halo Custom Bases
They actually come unpainted but the examples below are some of the styles I like, hopefully I can paint them up to look almost as good as these.