I'm may not be as talented as others here but I can sculpt a little and I'm working on my own Plo Koon mask and goggles right now. It's made to fit over the one that's molded onto the Rubies mask. It's a little bit customized and may not be as screen accurate as you want. Here's some of the WIP pictures. As you can see there's still some work to be done on the mask itself, but I'll have it finished in a day or two.
I have some experience at casting and I can make you a cast of mine if you're interested. Or if you'd rather have one that's a little different than anyone else's I can sculpt another one and make changes as I go.
I mostly paid for materials, so not sure on what he would charge. He has a ton of pictures on FB - look up Chris Arrowood - Mask Maker and you'll see a ton of pictures on the build.
I mostly paid for materials, so not sure on what he would charge. He has a ton of pictures on FB - look up Chris Arrowood - Mask Maker and you'll see a ton of pictures on the build.