The board came off in chunks, but some of them were big enough to reuse. I cut them into squares appropriately sized for coaster. The kids painted them with Christmas pictures.
The edges were a little crumbly, so I dipped the edges carefully in some modge podge. That totally seemed to do the trick. I considered sealing the tops too, but that would defeat the purpose of having an absorbent cork coaster.
These were delivered to some dear friends this weekend who I knew would appreciate a handmade gifts from the kids. They have many special little kids in their lives, but they love on our kids like they are the only ones. We all just eat it up.