What do they teal pumpkins on people's stairs or porches mean? Here's the answer...

According to the Food Allergy And Research Education wikipedia page, since 2014 the teal pumpkin has been used as a signal to parents that a particular residence was offering a non-food treats to trick-or-treaters with food allergies.

When you are stocking up on candy for Halloween, consider purchasing some small toys to be used as a non-food alternative.