On Monday, September 21, 2015 at 5:58:14 PM UTC-6, Greg Delp wrote:
I finished another soaring shirt design. Lift Is Good. Almost like the Life Is Good clothing line only way better because it has lift which definitely makes a glider pilot's life better than good. Lots of styles and colors available. Make sure you check out the front and back sides.

http://teespring.com/lift-is-good

Here's an idea: a silhouette of something akin to the Concordia with the words "Fly Open". ;-)