Later on as teenagers a friend of mine bought a "fart box" there. It was a rubber device that you held in the palm of your hand and would make a lovely noise whenever you squeezed it. I swear, he took this thing wherever he went for the next 6 months! Every public place we would go he would have this in his pocket, offending anyone who would walk by! We were easily amused I guess. But, actually, if you would do this now and film it, you'd have a successful reality show!
Here's a picture of a shirt that one of my friend's got from Switz's:


