I just discovered that my 1994 Gibraltar annual set contains the magnetic 1 Penny AA. I thought that magnetic coins were minted from 1995 onward, but it looks it started already in 1994.
Just added the year 1994 AA to the page with magnetic coin, so if you have this coin from 1994, please check if your piece is magnetic or not.
2p from the same set is non-magnetic.