Hi 335Silver, i will try and place 2 off-cut pieces over each other and see what it looks like, but I think if you want darker, check if Lamin-X cant supply a darker one.
The instructions sound scary, but its pretty straight forward, just dont try and rush. Handy tip - keep your hands wet at all times and if you find a bubble, lift up and re-adjust. I also found that when you curve it over lamp by the main beam, its handy to use a hair dryer and heat up the film to stretch a bit more.
The Squeegee I made by wrapping a credit card in a wet cloth and use that to chase out all the bubbles.