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Something at least a little toy related, this one shows how aperture changes the look of a picture using BJDs (or ball jointed dolls).
On the right you can see the settings used by the photographer.
She uses a 50mm prime lens.
ISO is set at 400, and from top to bottom the aperture (f stop) gets smaller, i.e. the number gets bigger.
You can also see that her shutter speed gets slower to keep the picture at the same exposure despite changing the aperture (because small aperture means less light because the "hole" the light can come through gets smaller the higher the number is).
Often cheap zoom lenses can't even open the aperture that wide, it's a thing people enjoy in many prime lenses for portraits and the like because you can set the focus to a certain part of the picture while the rest is blurry.
It's also important for "bokeh", these pretty out of focus light reflections so many go crazy about.
Google them, I'm sure you know them already.
