So you think all the paint out there is water soluble like the paint manufacture tells us. Well try the paintball Kool-Aid test and see why some of your gear get's stained or why your lenses stain or the anti-fog starts to peel off.And it may not just be oils but other non-solubles like the zinc-oxide in white fills.
http://www.youtube.com/watch?v=1QfKTOwqGEs
Chance
'07 Reindeer revolt(Santa)
'08 Cats and dogs(Cats)
Carter's Commando TX Div