I mean he won a copy that came up for auction.
Ah, of course. I should’ve gotten that.
(As a non-native speaker these idioms slip your mind every now and then. I though you were implying that Puggo was restoring one of the PSAs or something like that.)
I think the mouse and a couple other creatures were more “off the shelf” things Rick Baker or someone else had lying around to fill out the scene. (Others, like the bouncer, were created just for the HS.) The HS cantina set could have been chopped up and rearranged, or else Lucasfilm still had the partial sets handy from the U.S. shoot. They also could have simply built a new set.
It would seem all the U.K. masks got shipped back to Lucasfilm, as many of them appear in this Richard Pryor show skit from late 1977.
https://www.youtube.com/watch?v=0kJkhEcQ44k
Those masks really got around didn’t they.