I love the idea of this set. A couple suggestion, some of which has already been noted but I figured I’d reiterate. The mat is nice, but I’d suggest looking at the activities of the Apollo astronauts when they were on the surface- I think it was Charlie Duke who attempted to do some activities that mimicked the Olympic Games that were occurring at the time, and nearly fell over (which could have been serious injury or death). There’s someone who hit a golf ball up there as well (I’m drawing a blank on the name...).
I second the idea of a Saturn V rocket for the enter key that does not have a engine trail.
I’d also like to recommend a set of novelty modifier keys of a brownish/copperish/grayish look that show the mineral composition of the maré, which is present in some high resolution photos. I do some Astrophotography as a hobby, I’ll try to attach a picture. Photo credit: me, Instagram.com/mattkeysphoto
Anywho, great set, I look forward to it!
Cheers