If you can take the risk of there being photographic evidence from your stag do then the ultimate in camera technology will be a must for your last night of freedom.
Sony are to release a camera which takes 3D photos that can be viewed in on a special TV screen, so your stag do memories will come jumping back you, literally. Given how hazy memories can be on the day after the big night, the chance to see photos in such a life-like format is sure to be popular.
However, this cutting edge technology doesn't come cheap and at £550 it should probably remain in the hands of someone sober on a stag weekend, if there is anyone that fits the bill.
3D technology is now so impressive that Samsung recently put out a health warning that might scare away some potential customers.