Tony Clifton was a shared character, created with large black sunglasses, A jet black wig, a bushy moustache, and costuming suggesting a certain body type. If you are young and don't have many wrinkles or prominent nasolabial folds, you may want to use traditional stage make up chiaroscuro techniques. Unless you are very, very thin, you probably won;t have to use prosthetics.
Prosthetic appliances involve sculpting new features (usually on top of a lifecasting of the actor who will wear them), making a negative mold, and using the negative (and usually the positive or a partial copy) to make a piece of fake skin that is glued to the actor's face. Slip cast liquid latex, foam rubber (hot or cold), silicone, vinyls, and gelatin are all possible materials that can be used.
------------------
Jeff F - Moderator
Magic and FX
Amazing the Masses
All times are ET (US)