I made these cards for use on a lanyard for easy access to use with students. It has examples of strategies on the back and you can edit them for more personalized use. I used Avery Clean Edge Business cards, product # 18871, but you could use card stock as well. The back side of the cards are aligned for manually printing double sided on a colour printer. You may need to adjust for your specific printer. Once printed I recommend laminating the cards.
I have arranged the cards on my lanyard with green on top, to show the desired zone, then blue, yellow and red. The first day I wore them at school created a lot of discussion about what the zones are and the strategies for helping get back to the green zone.