OK. Extreme wedging, never to be confused with "Extreme Wedgying" "ouch".

I will drip feed you a few tips haha.

The most important part is the initial stages . Take 2 pieces of wood, lets say each piece measures : 2" x 2" x 1cm depth. (I hope that makes sense)
Sandwich those two pieces with lets say a piece of brass as the meat in the sandwich. Glue them...

Then taper both sides of the wood with the metal in the centre and make a wedge shape.

Then simply add a piece of brass either side of the wedge.

That is really the most important part. If I had my time again I would take photos and a 4K video .

I will always try to out do myself so my brain is already devising the ultimate in Extreme Wedging..

Cheers guys