This might work for you if it is a "clay" chip... at least it worked for me once. I put the warped chip in the microwave for 1 minute on high but if I remember right I took it off the caroselle at about 50 seconds. Careful because it needs to be hot but not melting. I then placed it between two plain white antique chips and press them lightly together with my fingers. The warp came right out and when it cooled it was flat. Good Luck!