Where to get really thin plywood?

Does anyone know where I can get 2 mm thick plywood locally? I’m making a replacement piece for a small wood model thingy. I believe 2 mm is thinner than what’s available at Treehouse. I see it online but would prefer to by it locally if possible. Something like this:

It looks like Haley Wood Products may have 3mm birch: https://hayleywoodproducts.com/

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Thanks Sam.