Early Ballys like Fathom, Medusa, Eight Ball Deluxe, etc. used a bumper body with clips to hang those larger pop caps on.
I did not see those available in your store. . . yet.
You would be targeting a very small market to reproduce these though so I will be happy with the white bodies on those games.
Still working on fitting the skirts into another game or two -- will be sure to post more pictures when accomplished. Between John's translucent pop bumper parts, standup targets, and drop targets a lot more light is available to the playfield on my games. . . and they look great too. Thanks again Zitt !