You could tie Richard Komar's Hard-Hackle Worm on a 1/0 or 2/0 hook with really long brown-barred feathers, and black plastic bead eyes, and that would make a fair imitation.
Plastic Lure companies have been making snake imitations for decades. This is nothing new. And when I lived in Tx. (born and raised there), lots of people fished with rattlesnakes, and water moccasins, especially in Lake Texoma, and Lake 'O The Pines. They are only dangerous if they bite you..... What do you expect from people who regard 'noodling' for 40+ pound catfish a 'sport'?
Whats the big deal?