If you FICOs are kickin', a lot of folks report getting 0% BT offers. As I say, the convenience checks may or may not also carry a 0% APR intro rate.
It's possible a bank would let one fund a CD with a CC. If so, and if you could also get a 0% APR on purchases, you could take advantage of the CCC's money.
However, your FICOs would accordingly suffer for that period of time depending on how much you charged.