You are more than welcome!

I would certainly send them an email and see what they say. A couple of years ago I was searching for a gold anodized pickguard for a 1951-style Precision, so I contacted Pickguardian to enquire. Tony (the owner) wrote back, saying that unfortunately he did not make anodized guards, but giving me the contact details of a company who were happy to make them as one-off customer orders. If you let him know exactly what you were looking for, he may well have a suitable piece of material lying around, or be able to point you towards someone who might help.
Another alternative might be to buy the material yourself and then either make it yourself, or, if you are not confident of your ability to make a really neat, professional-looking job of it, send it to somebody who could do the job for you. I'm sure that there will be plenty of trusted members on the forum here who make things out of plastic (pickup covers and the like) and who would be happy to help.
In just a minute or so of Googling ("faux tortoiseshell material" was the search term) I found a couple of possible sources, just to give you an idea of what is out there.
http://www.ivoryalternative.com/pages/otherproducts.html
http://ajh-knives.com/pearl.html#pearl5
Happy hunting!