With the Thanksgiving holiday season bearing down on us, the Transportation Security Administration wants to remind travelers what not to put in their carry-on. So they invited the press to JFK International Airport’s Terminal 4 yesterday to show off some of the strange items the TSA has confiscated. The takeaway: you're not getting onto a plane with rounds of ammunition and throwing stars.

(Tod Seelie/Gothamist)

TSA spokeswoman Lisa Farbstein said that one "very popular" item lately is the plastic credit card folding knife. The TSA is launching a new app, MyTSA, that will help you figure out what you can and can't bring in your carry-on. Your artwork with a grenade, no matter how whimsical it is, is forbidden. Also, you should really check your ice climbing axes.

The app

Technically, the items aren't confiscated but "willfully abandoned." The state of Pennsylvania will pick them up (4 tons are confiscated annually at JFK) and will sell them in Harrisburg. Why Pennsylvania? Apparently New York and New Jersey just don't want to deal with it.