Electronics are not expensive at all... It will be my next step
I've used the original ugly white pickguard as the pattern.
The "new" pickguard are 2 layers... first one is a black plastic and second one the pearl plastic. black one is just a little bigger thanthe pearl layer, so it creates a 3D border.
I used a cutter and a dremel, and then a lime. Materials costed me less than 5 bucks and now the bass looks way better than the original pickguard