Removing super glue

A few of the "2 for 5 bucks" figures I got at the convention are superglued together (apparently someone never heard of replacement O-rings) any help on how to remove supreglue without destroying the plastic with the acetone based nail polish remover?

[pluv]

I'm assuming you mena torso to waist here. Dropping it in some boiling hot water for a minute might help losen it up enough for you to pull them apart. Using an X-acto knife or flat head screw driver and small hammer as a chisel/crow bar mihgt aslo be helpful.