Anyhow- arent the glass capsule stink bombs real expensive? If not PM the link!
You can get some good deals on eBay.
Scottish comedian Billy Connolly tells a story about the time he and his friend took some glass stink bombs onto a train in Australia. His friend goes into the lavatory, lifts up the seat, sticks FOUR of them onto the rubber pads underneath the seat using black electrical tape, then gently puts the seat back down. Then they sit back and wait for some poor sod to go in and sit down...