Finding these sheets took a bit more work than I had hoped. The first two stops, the local model train shop and art store, did not have any balsa. We had to go down to the area of the mall to the nearest HobbyTown USA, and, hidden away in a corner, was a nice supply of the material. My wife also found that shiny new cutting mat in the background - it is huge, at 24" x 36" it is bigger than the hobby table! It was also ½ the price of a similar mat at Michaels so there was much rejoicing!
