I'm not sure if the 2 previous posters are pulling your leg or not but using any type of sharp edge to remove a finish can be a very risky operation to say the least. Nick or gouge an inlay or delicate veneer and you've just created a monster repair job for yourself. There's no quick method or substitute for the time tested method of sandpaper. NEVER use a chemical stripper either.
Everybody's looking for the quick & easy way to do things but 'quick & easy' usually comes at a price. If you're not willing to put in the time & effort to do the job right, the end result will look like you weren't.
Depending on whether or not you have finish compatibility issues, you may or may not have to sand down to bare wood. Sometimes, you have no choice.
In the overall approach, I think that one's initial mind-set has a lot to do with it. I do at least my share of re-finish jobs and when I set out to do one, I strive to make the cue look AT LEAST as good as it did when brand new, or better. Tricks and short-cuts can take a backseat when it's my rep that's on the line.