#2 PostAuthor: DogsbolloxofZ1B » Fri Mar 13, 2015 7:49 pm
Sean,
You occasionally see the die-cut ones for sale on the ebay.com site but to be honest almost all of the ones I have bought are incorrectly cut so you end-up trimming them. I use a 5mm packaging foam fairly 'close' cell that comes with a lot of packaging these days. Does the job just cut to size & stick it down.
Mike