There was no metal top on the Wisconsin Point. There as a metal rod. Some of the later pieces have a small metal rod in the ventilator ball to give it support. The actual ball is still the material that HLs has always used since either Canada or Malaysia.

The poster about resin lighthouses was not clear if he/she was talking about a HL piece or non HL piece. He just asked a question about a resin lghthouse and how to add a hanger to it. The procedure I gave him should work with any lighthouses, including a HL lighthouse, unless it has a metal rod inside the ball. You won't know that until you start to drill. All this is assuming that the hanging piece is going to be inserted inside the ventilator ball. If it is anywhere else the same procedure can be used except the care to not break the ball won't be needed.