Ok, I just have to post this one! It's one of the top sellers in the play.com gadget section. It would be a class little gift or a joke for someone! And it has 5 different fart noises - oh, the sophistication! It's only £1.99 delivered from play.com.
Details: Oh what joy - the comedy never ends!!! Slightly hinged in the middle - this fully working pen will make one of 5 different farting noises when pulled. Everyone should have one of these on their desk!! Batteries included.