Send your robots right over!
Here is my entry for the 2013 AFRON Ultra Affordable Robot Competition. An autonomous rover that can be built for around $20 per-student.
"Robots excite people of all ages. Their physical behavior often inspires primary and secondary student interest in computers, science, math, and engineering more broadly. However, existing platforms are often too expensive for students. This project aims to collaboratively create an Ultra-Affordable Robot (an order of magnitude less expensive than existing products) to inspire young people around the world."