[boz]

I would take the 2 piece option as I enjoy a challenge!

As it was Blue Peters 50th birthday here you go Dave.

Tools required:-
Super fine draughtsman's pen
Super sharp craft knife
Leather punch or similar

The top piece can be made using your current Proporta protector as a template and I don't think it would muffle the sound that much covering the speaker hole, try a piece of Sellotape over it and see! If it is a problem then it is only straight cuts after marking out neatly.

The bottom piece shouldn't be that difficult, the trick I think is to cut the hole first allowing enough protector over each side for trimming down each side. I would cut the hole out using a leather punch or visit your local saddlery/shoe repairer etc.

Next time it is the Advent candle holder made out of coathangers.