New York Dolls' debut probably counts. I think the first two Roxy Music albums probably count, with maybe "art rock" being more appropriate after that, but I find "art rock" a borderline meaningless term.
Similarly, I think 10cc are pretty glammy, but maybe they'd go in art rock or art pop or something.
RYM says Be Bop Deluxe are glam, and they're better than most of these bands - Sunburst Finish is their best.
The Tubes and David Essex both have at least a couple fun songs, I don't know how their albums are.
Are Kiss glam?