Looking for corrugated kraft suitable to route for dimensional letters

[TEN]

Looking for corrugated kraft suitable to route for dimensional letters. I guess standard corrugated cardboard could be used but I have seen some other materials at trade shows. Does anyone have a recommendation? example attached.

Thanks.

 

[White Haus]

Not what you're asking, but judging by the edges it looks to me like those were laser cut.

 

[JBurton]

Falcon board?

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