1.The thickness is 75 mm. I does the plan of the glass in the marking at the pencil.

2.I cut like the pie pin in band saw. Because the horse chestnut was easy to cut very much, the work ended at short time.

3.I grasps tightly with the 4 nail chuck. and, the hole of the knob earlier in the drilling.

4.I drilling it using fosnar bit of 25mm and 50mm.

5.I used a square scraper and shaved a part inside and in the bottom.

6.I sanding the inside of glass. The outside is cut down hard with the knife. It is a pace that finally one piece is completed when it can have the blister in the hand.

The urethane is painted after sanding. I made Kuksat imaging it. However, it doesn't look like.
60mm Dia * 70mm Tall.