Step 1: Material
-Hot glue/wood glue
-Thin scrap wood
-A straight edge (I used a steel rule)
Step 2: Preperation O' the Wood
Then, mark it to your preferred size.
Cut/saw to size.
I suggest the cutting is done on a (funnily enough) on a cutting board.
Step 3: Cutting the Cork
Slice it/them into rings of equal thicknesses.
Step 4: Attaching the Cork
Put a blob of glue on the wood and place a ring of cork upon it.
Repeat the above until you have your pattern.
Step 5: Trimming the Cork
Step 6: Attaching the Wood
Place the desired shapes of wood on the cork board, and trace around them.
Remove the wood, and slice along the traces, then glue the wood in place.
Step 7: Finishing
You now have a simple, but elegant coaster/s.