Went shopping with the better half today for some kitchen items. Saw this small Olive wood cutting block and thought it might make some good material for scales. Not too pricey at $16.00 and about 3/4 inch thick. The idea is to halve the thickness by sawing to get enough wood for about 4 sets of scales. That is the idea but haven't tried it yet. Anyway, you may be able to find suitable wood in odd places.

Bob