Slightly off topic because kids' mis-spellings aren't cringeworthy: they are often delightful.
I once had a very exciting story to mark, written by an 8-year-old, which was set in Africa. All kinds of creatures appeared, but my favourite was the austridge.
On another occasion, a colleague and I were responsible for teaching maths to some very challenged 11/12 year olds. We set some homework one day and the following week one lad appeared with a picture of the world's tallest land mammal that he's drawn and a letter from his mum along the lines that she couldn't see what this had to do with mathematics.
We had told them all to draw a graph.