Interestingly enough, at several conferences and seminars I have attended, things like this - stuff called "premiums" ( A.K.A. loot or swag ) have completely derailed meetings of engineers and other professionals. Hilarious
Picture a large conference table with a bunch of people playing "castle seige" with these catapults, while the balance of the attendees marvel at the ingenuity of the device.
At trade shows I have seen near stampedes to certain vendors booths just because they hand out interesting stuff.
Many times now if there is any stuff handed out it is done at the end of the gathering, just to keep everybody focused.
I bet this guy generates more interest via this card than by reputation alone.
His website shows some pretty interesting items anyways.