Extra, Extra, Great Teacher Appreciation Doors!

Keeping with the Teacher Appreciation Door theme, here are a couple of EXTRA ideas...sorry, bad joke!
We think you're EXTRA cool!  (Attach pieces of Extra gum to the door.  I love how there is tin foil on the top and bottom of the door to represent a piece of gum.)

Using the same EXTRA word, you could do a door that reads:

"Thank you for going the extra mile!"