If you haven't lost the thin nozzle for the can a bit of WD, GT85, Lithium Grease if you've got any.
Poor mans choice as always and my preferred option, thumb a bit of spit in and work the grip until you can get more phlegm in. Don't worry you can wash your hands after and treat the grips to a soapy dip too, they'll come up a treat with washing up liquid.
Thumb it in, thumb it in, thumb it in. No, it's not your birthday. :cry: