Recently, my son gave an oral report on kingsnakes in his 3rd grade class. I provided a visual aid, which was my Mexican black kingsnake. The reaction from the kids (girls included) was surprising. They all had to touch the snake and everyone was excited and had snake stories.
I think that most kids are interested in learning about herps and that if you provided just basic interesting info about herps, people will listen to you. Just explaining why a snake flicks its tongue out is interesting to kids. There are people around here that charge to give reptile presentations. You could make money while you teach kids to love herps.

snake adventures