I agree with Chris, no doubt about the ring.... Number 12, the HJ with the green outer ring is a fantasy piece based on a tinnie of a similar design, I've never seen the pink HJ thing, & I can't say that I like the look of it either (but that's just a feeling). I do not like the Gau Osthannover either, the reverse indicates that it's most probably cast.
I can't comment on the Luft items as they are out of my collecting field, but the tinnies & veterans items look OK from what I can see in the pictures.
Cheers
Don