These are naivist, intuitive pictograph theories of whence ow alphabet got into the shape it's in today, based on what today's letters look like. Try you head at imagining pseudo-credible origins for them, freely allowing anachronisms. With luck, you won't get arrested for it. And with my examples as standards, you can't possibly embarrass yourself.
"A Pseudo-History of Alphabetical Characters,"
Word Ways: Vol. 42
, Article 20.
Available at: http://digitalcommons.butler.edu/wordways/vol42/iss1/20