I'm planning to purchase a Scottish bonnet, or some other form of Renaissance era headgear, so I can authentically wear a kilt to a Renaissance festival. It's my understanding that the Balmoral, Glengarry, and Tam O'Shanter are all more recent forms of headwear. But people use several of those terms interchangeably, so I'm having some difficulty determining what a Scottish bonnet should look like.

I found a couple examples for sale. Are either of them reasonably accurate?
eBay version
Scottish Trading Company version

Is there another type of hat that I should be considering?

On a separate note, would I get weird looks if I wore a Scottish Bonnet to a highland games? Wearing a hat in the sunshine is kind of mandatory for me.