I made some coaster's a few months back for my friend, Heather, for Christmas. The process and suppliesfor making coasters is here. I made one change, and then made another set for my friend, Jolene. She's a grandmother, and I figured she'd appreciate a set of some of her photos with her grandkids. Her family helped me out by providing the photos.
The biggest change I made was I used this sticky backed cork on the back of the coasters. I found it at Hobby Lobby in the corkboard section.