I carry a bag of porkrinds in my purse on planes and trains.
If I go, they go, minute pieces of pork scattered all over.
I love it! A terrorist pulls out a detonator any you quickly pull out the porkrinds. He realizes that he won't get into heaven and meekly allows himself to be disarmed.
Of course, if he doesn't see the porkrinds in time, he might still blow himself up, taking everyone around along with him. Then, when he gets to "Muslim Heaven" he finds out that he is not allowed in because he is unclean. The murder of innocent civilians, of course, is no problemo.
Seriously, your idea has promise as a deterrent. If civilized countries announced that all cars, trains, buses and planes would now have their walls lined with pork products, perhaps these lunatics would think twice (or, in their case, once) before wreaking their havoc.
Seriously, I used to carry pork rhinds with me in Iraq.
Thankfully I never had to use them.