i live for 3D,

There are generally two types of nail polish remover. One type is 100% acetone and the 2nd type does NOT contain acetone at all. You want to purchase the type that does contain the acetone. A 16 FL OZ (473 mL) bottle of the type that does contain acetone is relatively cheap and can be found in just about any drug store or cosmetics department.

The label on the bottle of the nail polish remover containing the acetone will have the following statement or something simillar:

Professional
POLISH REMOVER
!00% Acetone

Note the 100% acetone. Also, as already noted on this thread, dab a Q-Tip or paper towel with the remover and work slowly on the spot/spots.
Again, as Flying freak has stated, change the Q-Tip or paper towel as often as needed in order to stop the spreading of the CA on the surrounding covering. The longer the CA stays on the covering, the more difficult it becomes to remove.

WARNING: Acetone placed on some of the cheaper coverings, and perhaps on a few of the more expensive types, may dissolve colored coverings. However, the dissolution does not occur quickly, so you will usually have time to stop the work before you dissolve the entire color from the spot. Try the procedure first on some extra covering that you may have. If you don't have any extra covering, try it on an inconspicuous area of your model's covering.

The acetone is also good for cleaning up dirty spots that can't be removed with dabs of soap and water. Use of the 100% acetone nail polish remover has always worked out very well for me. Also, it comes in very handy when you glue two or more of your fingers together with CA!

Good luck with your CA,
Sailplane