The stylus for my iPad. It used to have a rubber O-ring in one of the grooves above the
tip, and this was intended to keep the lid on. Unfortunately, the O-ring kept rolling off,
which left the lid loose and at high risk of being lost. It occurred to
me today that a short strip of sticky tape wrapped around the top end of the silver
section might just thicken the barrel enough to hold the lid. Works like a charm.