I've been working on this collection for awhile now, and love the character it adds to our dining room! There are lots of friends and family to thank for the many corks thus far. The frame was a thrift store score. I found some Elmer's Wood Glue in our basement, and keep it upstairs now, as this is a board that slowly grows, cork by cork. Any glue would work for this project though.
I usually add them in pairs, with a few champagne corks, (cut in half), scattered here and there. You could cut all your corks in half if you wanted, but I leave mine whole so they stick out more.