heavy weights, two people if possible, plenty of time and something to smooth them down with.....
Lots of info here : http://www.pinballinfo.com/community/threads/fitting-cabinet-decals.4558
EDIT - Oh and make sure that the thing is as smooth as a baby's bottom... any slight variation from glass-like finish and you'll be able to tell when the decals are on... and i joke not!
Lots of info here : http://www.pinballinfo.com/community/threads/fitting-cabinet-decals.4558
EDIT - Oh and make sure that the thing is as smooth as a baby's bottom... any slight variation from glass-like finish and you'll be able to tell when the decals are on... and i joke not!