Thank you for reminding me! I meant to do that.
From the foodallergy.org website:
Putting a teal pumpkin on your doorstep means you have non-food treats available, such as glow sticks or small toys. This simple act promotes inclusion for trick-or-treaters with food allergies or other conditions. Become a Teal Pumpkin Project Insider to receive resources and updates straight to your inbox to help you spread the word and make this year’s Teal Pumpkin Project the most memorable – yet!
(Now I need to get some tiny toy treats to have for Halloween.)