Here's an image from Hodgson's toy theatre plates. Notice, they were going for the full-on Highland look. This seems typical for the nineteenth century.
Duncan looks perhaps a bit less openly Scottish, but fittingly regal in this image from the third plate of characters:
I'm quite amused by this soldier bringing Birnam Wood to Dunsinane:
In addition to buying plates of characters, toy theatre owners could buy whole scenes to drop down into their miniature stages to create a tableau. Here's one of the banquet scene:
I like the expression on Banquo's face. "Just look at what you did to me, Mackers! Just look!" I imagine some Victorian child just loved that.