I'm familiar with both, but straining-on-the-john singing is still straining-on-the-john singing, no matter who's doing it.
Got a green jacket stitched with ISPF and Moonbase patches that turned up in an army surplus store in Norwich (No, I don't know why either) 25 years ago. Not a perfect match for Nathan's, but close enough...
I've got the ISPF badge somewhere, but not the moonbase one. I can't remember where I got it (possibly this bookshop in Sheffield that had all sorts of stuff like that) but I've had it a while.
I dealt with a place called the Sheffield Space Centre by mail order many, many moons ago and I seem to recall I bought an ISPF patch from them back in the day - two decades on who knows where it is, possibly in a box in an attic somewhere.
That's the one. Before I was online, I used to go down to the store once a month and usually ended up filling a rucksack with books and various other items. (That was back when I could get so much free train fare per year though) Even after I went on-line, there was still some stuff easier to get there than anywhere else.
It's the first place that I saw selling Nostromo and United States Colonial Marines patches, which at least I do know where they are, in my patch collection box including Umbrella Corporation, Weyland-Yutani, and Battlestar Galactica patches. Got some interesting books and comics from them in the past too. I thought I noticed their advert in a recent issue of SFX magazine, good to hear that they're still around.
I lived around the corner from the shop! I remember the show. Unfortunately I only remember that it existed and pretty much not any other thing about it!