Balls I still use:
Old Japanese acrylic spare ball, 30-odd years old, a Chrysron "Messenger 300". My wife and daughter both have one too. Also pull out a Brunswick GTB and the trusty Grey Angle occasionally. My 1959 Manhatten Rubber has, alas, finally bitten the dust. My go-to strike ball is still my Quantum Sage, and also have a Fire & a Violet Hook.