Although a fairly crude piece of humor, this pen actually has a couple advantages you may be interested in. The first is that it will be of no use to those who chew on the ends of the pens they borrow from you. That is pretty gross in the first place.
The second is that it would be pretty obvious if anyone were to steal it. Why anyone would want to is beyond me, though.
Product Page (£0.99, $2 US)
