According to The Chicken Qabalah of Rabbi Lamed Ben Clifford (Lon Milo DuQuette), the Hebrew letters look like this:
Aleph doesn't look like any other Hebrew letter and is therefore easy to recognize. It has one long diagonal bar that looks like a banana separating two small Yods. Thw Yod at the top right is connected to the banana at the midpoint by a thin line (a Yod on a stick). The Yod at the bottom left is flattened at the bottom like a foot and is connected to the banana underneath its left shoulder.
Teth looks like the profile of a duck swimming on the water looking back at a big Yod that's stuck to the tip of its tail.
Yod is a flame.
Lamed looks like a snake that has swallowed a brick and is now having second thoughts.
Mem---if we are still looking at a duck swimming on the water, the duck has reached back with its bill and has pulled its tail completely off.
Nun Final looks like that little mirror on a stick that the dentist sticks in your mouth.
Ayin is very distinctive. It is built upon a bold right-leaning diagonal banana. There is one Yod connected to the top of the banana, and a Zain [sword] stabs the banana's top mid-section. It looks very much like an English lower case "y."
Peh is exactly like a Kaph, only it sports a distinctive tongue that dangles from the roof of its mouth.
Tzaddi looks like a man with a huge pompadour haircut kneeling forward. He has just been stabbed in the back with a Yod on a stick.
Qoph is quite unique. It is very similar to an English capital P with none of its components touching. It also looks like a left-facing profile of Elvis Presley with really long eyebrows drooping down past his chin.
Tau [Tav] looks like a Resh holding a dead dolphin by the tail.
If you do not believe the Rabbi, pull out your Hebrew alphabet cheat sheet and look again.