In my opinion there's just no way you could get anything like an "official" Jewish tartan. There is no single religious authority like the Pope, who could put their stamp of approval on it. About the closest I could imagine would be if the Israeli government would adopt one, but I don't imagine that would be a priority for them.

An unofficial tartan made be a kilt maker (are you listening Rocky?) sure. Or maybe one sponsored by an organization or congregation (perhaps Brandeis University needs a pipe band?), but outside of Scotland, I don't think there'd be sufficient interest, and it seems like we've pretty much established that the Glasgow Jewish community has come up with their own solution to the problem by adopting the Gordon tartan. Works for me.

Best regards,

Jake