The first possibility :: create a wreath with corks.
This was a simple project but a bit time consuming. Total cost was $0 because I had all of the materials on hand - you probably do too except maybe the scallop punch.
I used cardboard from a box as the backing. You do need something dense for this piece. I cut the cardboard into four fairly equal rectangles and used a glue gun to adhere them together - you can see the formation below in step 1. I then glued about a hundred corks to the cardboard backing (step 2). I could have stopped at this point (step 3) but I didn't love that bits of the cardboard were showing. To make it look more finished, I used a scalloped punch and magazine pages to make about a hundred square pieces of paper (step 4). I then added this as fringe around the outside and inside of the square.
The second possibility :: use the corks in a vase. This is also a nice way to store them until you are ready to use them for another project.
The third possibility :: make a cork coaster. This requires eight corks, a glue gun, and about five minutes. Cost for me was $0 as I had everything on hand. To get a straight square, find 8 corks that are all about the same size and length. Then match them into pairs - 2 vertically and two horizontally. Glue the pairs together and then repeat for the other four corks.