Which makers use this or can use this instead of all natural materials?

I use it from time to time,just got to make sure I wear the respirator. The dust off of that stuff is some nasty stuff that you certainly don't want in your lungs.

I also use it. It machines great but like Mike said..a respirator is required. Since I had congestive heart failure a year ago..I use a respirator sanding or grinding anything

I try to myself but every now and then I just get lazy

Is there a knife supply place I could look at g10 and bolsters and such?

Jantz Supply

USA Knife Maker

You can make your own if you have strips of material. I made these handles from an old pair of blue jeans 22 2" strips each submerged in fiberglass resin and clamped together between wood

I got no skillz