Some are just fun. Some are realistic depictions of actual NASA patches. We have a special term we use for these, "cool." Imagine the best of these on the cover of your laptop, or the rear bumper of your X-wing. Fifty stickers in a set.
Need I say more?
Actually I do need to say more. This is in the "Wall Art" category, but just take a think about it before you stick these on your walls.
Your mother will thank you.