Thank you for helping me growing. Rulers are not only used to measure things but also can be used to create some creative things. Perfect for back to school or teacher gifts. http://hative.com/creative-ruler-crafts/
This person created a whole basket of gifts around the "apple" theme. The apple theme is OUT for teacher gifts-- so are large bottles of beverages that teachers/adults generally don't drink. My kids won't even drink the freshly pressed "pulpy" version of apple juice.