Don't worry, the actual paper is rather less ancient, though it was in an obscure enough journal to be in the rolling stacks — gear handles and all. But find it I did, and while they sadly don't have a photo of the contraceptive underwear, they do have a diagram. Since it is conceivably NSFW, I'll put it below the jump.
|from Mieusset and Bujan 1994, Int. J. Andrology|
So there you have it, male contraception. Sorry, I just find this stuff hilarious for some reason. Perhaps it's the juxtaposition of dry science and elementary-school humour in phrases like "using the Wilcoxon T test for semen parameters". Perhaps it's the thought of all those straight guys who worry about women "trapping" them with children — let them explain why they don't do this. Perhaps it's the thought of getting dudebros to read up on drag queen advice sites. But in the end it's a real technique, that really seems to work.