The other replies came while I was typing...

Almost every brand name of CA has a debonder available.
This is one of the least expensive:
Tower Hobbies Build-It Debonder - 2 oz for $3.99
http://www2.towerhobbies.com/cgi-bin...?&I=LXPT41&P=0

I have no idea if one brand is better than another. The stuff I have at home is from Bob Smith Industries (sold as LHS house brand) and it works fine.

I've heard and read that nail polish remover works as well as the debonders. I've never tried it.

I've also heard and read that acetone works as well as the debonders. I have tried that and it did not dissolve the CA as fast as the debonder.