A pint glass or something with a large circumference.
A hair band or rubber band.
Some rolling papers.
Scank or booze.
A small coin.
A spliff or two.
Preparation:
Depending on your mood either put alcohol or skank in the bottom of the glass.
Stick the rolling papers together to form a skin that covers the top of the glass. Secure with the band. Place the coin in the middle of the skin.
Play:
Normally the person who skins up starts by sparking the spliff and stabbing the skin with the end of the spiff burning a small hole. The spliff is then passed to the next person. Only one drag on the spliff is allowed so make it a good one. Bridge breaking is allowed but the paper has to be "in play". "In play" paper is paper that is supporting the coin.
Forfeit:
The traditional forfeit for the person who drops the coin after their turn is to retrieve the coin from the bottom of the glass with their hand. Games can be made more harsh to lose by making the skank in the glass with spit, fag ash, dregs of beer, food and sometimes piss.
Another option is to just use alcohol and retrieve the coin by drinking the ashed remains and getting the coin with your mouth.
Forfeits can be made even worse by combining with a task like making a cup of tea, washing up, going to the shop, making the spliff for the next game etc... When sharing a house with lazy people you can incorporate Derek to assign housework duties. If some of your housemates don't smoke you should find someone else to move in who does.