Just a few...
Bruce Bray is a majician that did a whole show and spoke about books having a magical effect on your life.
Simon Sez - a master simon sez man came and had the teachers and parents laughing hysterically. His show was about listening, perception, learning your surroundings, etc. Fantastic Show
Yo-Yo Man is great. No charge, you just have to sell his yo-yo's for 4 days after his show.
Call your local police, fire, sheriff's department etc. to speak about strangers, dial 911, Stop,Drop & Roll, computer preditors---usually are free
Have a "career day" with parents coming in--locate them in various areas in your gym, cafeteria, hallways etc. and as classes come through kids can stop to speak with whomever they wish & learn what that job entails. Then they go back to class & write what persons impressed them the most, what career choices they liked best. FREE - parent/community volunteers
Peter Parente - wrote 2 children's books about the rainforest & its animals. He brings a 2-toed sloth & kingachoo with him. GREAT SHOW
Ask your local bookstore for any local authors. We have a few and they came in, read & spoke to kids. Younger grades-about the book. Older grades--spoke about what its like to be an author,where they get ideas from, being an illustrator, etc. Low fee or FREE