sculpy plugs

[fadedred.livejournal.com]

so ive been messing around with sculpy and i made myself some plugs. i was at a 0g.. then i made my way up to 00g.. then i made them bigger.. im not sure what size they would be considered now since i made them.. is there a way to figure this out?
and also, does anyone have any tips or information on the whole making body jewelry out of sculpy?

thanks in advance for any help.