-White tiles (I got mine from Home Depot for $0.16 a piece)
-Photos or scrapbook paper
-Cork sheet (I bought thin sheets of cork from Michaels)
-Polyurethane for waterproofing
First...Cut pictures so they fit on top the coasters.
Second...Apply a thin layer of Mod Podge to the tile and then lay picture on top. Once it's dry, apply a thin layer of Mod Podge to the top of the picture. Don't worry, it will dry clear!
Fourth...Sand the edges of the tiles so they are smooth.
Fifth...Measure your tile then cut your cork out and attach the cork to the back of your tile. The sheets of cork that I purchased were $1.99 and were sticky on the back. They worked well, but I also glued the edges to make sure the cork stayed put.
Since these were given to family I used pictures of my kids. You can easily use scrapbook paper and give them to teachers, neighbors, family or friends.