Printable labels to place in a plastic, 2 sided, lanyard sheaths ( Like: https://www.amazon.com/Cosmos-Vertical-Assorted-Leather-Business/dp/B00N1RII62/ref=sr_1_20?ie=UTF8&qid=1504637760&sr=8-20&keywords=lanyard+id+holder ) .
Simply edit your name and room number, print out, cut in quarters, then, fold each set in half and place into the holder. Feel free to change the font or text colors too! This method helps prevent nasty situations with the hall pass and decreases the amount of specific notes you need to write students.
Four different designs: Science, Social Studies, Math, and ELA