Monoject syringes! Thats what I use. Just fill them with water, get them as close to the stone as you can and blast them out! Painless too!
I've found, by the way, that eating nuts is a surefire way for me to get some of those nasty suckers.
Anyway, for all interested I'm starting a page dedicated to tonsil stones (a lot of the pages I've seen are actually created to sell stuff like Therabreath)... There isn't a lot there, just a survey, some links, and a forum. Anyway, its at
TonsilStones.org for those interested!
I created it in the hopes that one day I can get rid of those tonsil stones without getting rid of my tonsils!!!