Purchase one of those CD Labelling Kits and create a label with the recipient's name along with some graphics and a background. Print out the label and adhere to the top of the CD. Then use a CD to trace onto a piece of felt. Cut out the felt and glue to the underside of the personalized CD. Then use a piece of clear adhesive plastic sheet and glue this to the top of the personalized CD, protecting the design. Trim around the edge and VOILA! you have a personalized coaster!