I've always been a fan of anything space-related so NASA has always held a special place in my heart. I decided I needed a sign for my shop and the response has been good enough to offer them the others.
 
They are printed on aluminum sheets with additional hand prepping and clearcoat added for longevity's sake. 
 
Dimensions are right at 12 inches by 8.4 inches (approximately).
 
I'm always up for a new design or subject so please let me know if you're looking for something unique. Most color signs are possible and the price depends on the complexity and materials.
 
Thanks for looking and I look forward to being of service!