Where to buy 'Nintendo-like' plexiglas bezel?

[DarthNuno]

Cannot find any shop locally who can cut for me a piece of Plexigas  ...and worst, cannot find the right plexigas model to buy... 
I'm looking for a piece of 586 per 513 mm, with a thickness of 4mm. These are the measures from a regular Nintendo bezel.
I'm a little bit lost... which one to take? Some shops mentions a % for light transmission (see here for example) ? Which color to take (black, brown, grey...). As you can understand, I'm looking for the best 'Nintendo-like' match possible.
Oh, and I simply cannot buy a DK one for example, I need an sticker/silkscreen-free one... in order to apply my own Fix It Felix sticker 

[level42]

Of course I could order at my supplier but the bronze (brown) color was not available anymore.
I'm not really sure what Nintendo used...

Sizes are no problem, 4mm available.

[Q*ris]

For Belgium, maybe ask http://www.plastic-coupoles-bara.be/
They are located in Brussels (Anderlecht).

[liquidx]

This guy in Brussels can order just about anything but I imagine you'd have to go there.
I got some custom pinball stuff there.

It's a small shop that's been there since the sixties (and looks like it) but the guy has knowledge.
His prices also seem a bit random, so it's probably worth discussing.

http://articlesplastiquesrenier.be/fr

[Blanka]

Often they send free swatches on request. So you can match at home.
Is it originally plexi and not glass?
My neighbour laser-cuts plexi for my Retro Space cabs, and has swatches, but I have no idea how the DK one looks like. He can get slightly bluish, brownish, greenish and neutral grey. He can also print and apply stickers directly.

[DarthNuno]

Thx guys. I'm gonna investigate all these solutions.