Here's a good one (trackball question)

[PeterB]

Can a pool (billiard) ball be used instead of a trackball ball in a trackball?

I seemed to remember reading somewhere that it could.

Reason I ask: I've just come upon a whole bunch of old pool balls, and I see that they don't fit my Kensington Expert mouse... too large (won't even fit in the socket). I wonder if they'll fit the older-style ADB? I think I have one of those around here somewhere...