An oval model of a base for wargaming miniatures, with a chamfered "lipped" edge such as made popular by Warmachine etc. The default is sized at 50x25x4mm, and easily resized to match any round or true oval.
50x25mm is the old standard for cavalry bases in Warhammer fantasy battle and Kings of War.
So now you can get the best of two worlds, both the esthetically pleasing chamfered base for individual viewing and skirmish game enjoyment, and backwards warhammer fantasy / kings of war compatibility for practical mass battle game functionality. Just put them on a movement tray and off you go!
you might want to set a thicker shell if you are going to pin the model to the base.
Scrape or sand the edge just to remove any chaff. Then just slap some paint on it. The fine print lines are not really noticable apart from in close up viewing.
A very simple rescaling of the round base model. Done in the slicer, No skill required,