Ha! Don't think you would accomplish much with eggshell media, Stan.

You use the large glass beads to get an "eggshell" gloss/patina that is very attractive compared to the rougher finish the small glass beads yield. I've seen some rifles done this way and they looked good, but it should only be used for certain applications on shotguns, this being one that would fit the bill. Not aesthetically
suitable on a nice American classic or fine English/Continental sxs. Target o/u's maybe.
JR

Be strong, be of good courage.
God bless America, long live the Republic.