Not probably from 'extinction' but certainly likely to be thrown away.
I found these two shuttles in a charity shop in Alcester just over a week ago. They simply HAD to be saved. Well, that's my excuse and I'm sticking to it!!!! The lower of the two is actually a lovely shade of yellow which seems to be lost in the photograph.
I'm already overrun with Milwards and have probably still got in the collection the ones I bought 60+ years ago with my pocket money!!! As I've tatted for so long and never been sidetracked I'm sure some of the originals have survived.
I now use mainly the Aero bobbin shuttles (or the new Clover bobbin ones) but when the Aeros first hit the shops and I tried them I couldn't get on with the design at all. Eventually (as Milwards were becoming hard to find) I decided it was the 'Aero bobbin shuttle or nothing'.
It always tickles me when I see people blogging or talking on Facebook about how you have to wind and hold the Aero to tat. Particularly which way the hook has to point (up, down etc). I once bought a French Aero which actually showed how the thread was loaded into the shuttle and which way the hook should 'point'. I adopted this method and have 'hooked' on Aero ever since.
I will add here that the way the shuttle is held is entirely up to the tatter but I would suggest just persisting at finding your comfort zone. There is no 'right' or 'wrong' way!!!