I got myself a 20mm strap from member Senssi, and it's served me well, but the problem is that my Seiko uses 22mm lugs and my MoonWatch needs a black strap, like the velcro one used by Buzz. That's Aldrin, not Lightyear ...
So, I found a UK shop online that sells what look like amazing NATO straps. I must say, I have to recommend them as amazing and cheap.
This is the Pass-around Watch on the original 20mm Bond NATO.
This is the 20mm Black NATO from Time Factors on my MoonWatch.
This is the 22mm Bond NATO from Time Factors on my non-rep Seiko.