February 24 is National Trading Card Day and a good time to remind travelers that many airports (and some airlines) have trading cards.

Airports Council International-North America, a membership organization for airports and aviation-related businesses, created a trading card program for airports back in 2014.

About 100 airports now participate in the program with cards that portray an image of the airport and the airport code on one side and a series of facts about the airport on the reverse. Some airports have issued more than one version of their cards.

How do you get an airport trading card?

If they’ve got any in stock, airports will likely have the cards available, for free, at their information booths.

Passengers flying on Delta Air Lines flights and those flying on Breeze (through Tampa International Airport) report getting trading cards from pilots and flight crew members.

And in some airports, handlers for therapy dogs hand out trading cards featuring their pups.