Making Hardwood Drinks Coasters

A friend of mine donated me some lengths of hardwood - oak, mahogany and teak (I think).  I used them to create these drinks coasters to give as Christmas gifts.  I got about 36 coasters in total out of the laminated block of wood - 8 sets of 4 coasters.  I had a few issues - the glue up was tricky and it took a while to find a finish I liked, but they looked good in the end!