My Loving Wife surprised me with a purchase of 60 old bourbon barrel staves. Each stave is approximately 33 inches long.
I cut them into 7-inch lengths 4 out of each stave)
Leaving 5-inches that made some good coffee mugs.
I then toyed with a different number of pieces to form the mug. Finaly settling with 9 @ 1 1/2 inches wide.
With that, divide 360 by 9 = 40. Then divide that by 2 = 20. (or 80 degrees) That is the angle of the table saw blade cutting when each side of mug stave.
Glue them up using type III or if you want 2-part epoxy resin between each stave. Use large hose clamps x2 on each mug. let it set for at least 2 days.
I then then turn them inside and out. Add a bottom. Sand them up to 250 grit. Add a wire burn line top and bottom.
Part 2 of the post will show adding the handle and sealing the mugs to make them usable.