Thats just it, I haven't seen them around any stores, but on cars.
What store in Lexington park? Some of the places you order online the shipping cost as much as the flags.
It's on Great Mills Road. If you are coming from gate 2 heading down GMR, on your left there is a shopping center call St Mary's Square with a Food Lion, gym etc. The right side of the mall is a big gym, drycleaner/laundrymat. Right next to the drycleaner (right side) is a NBA/NFL/MLB sports store, they sell hats, jerseys, jackets, cups, statues, pictures, banners, flags, etc. and they are even a ticket master for buying tickets to major sporting events.