I carry a leatherman "micra" all the time (unless I am flying, then it is a deadly weapon
). I find the little screwdriver, the size for the screws in glasses, works very well on the O-rings. It is also less likely to damage them than an ice pick or similar tool. Long fingernails would probably work but you need something that can get down in the groove.
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128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09