Ever wanted one but you've been too embarrassed to go out and buy one? Missus won't let you? Too young? Look no further!
You will need:
-1 Plastic cup
-1 (soft) cleaning pad
-1 Rubber glove
-No self respect
Cut the cleaning pad in half.
Place the glove between the two halves of the cleaning pad.
Slide the sandwiched glove into the plastic cup.
Pull over the excess glove around the rim of the cup.
Or, for the Star Wars fans - a Yoda fleshlight: