The drinking straws with the bendy top make realistic worm ridges. If using them, extend the straws to the full length.
Gather drinking straws and place in a tall container. I used a large cup, but an empty quart or half-gallon juice carton would work well too.
Empty flavored and plain gelatin into a large bowl. Add boiling water. Stir several minutes, until fully dissolved. Let cool slightly (approx 15-20 minutes).
Add a few drops of green food coloring to the coconut milk to make it light green. Add coconut milk mixture to cooled gelatin mixture.
Fill drinking straws and container. Let cool in refrigerator for at least 8 hours.
Working with one straw at a time, squeeze from the top and move your fingers down the length of the straw to push the worm onto a plate.
Keep refrigerated until ready to serve.
If avoiding corn, use a Kosher for Passover gelatin dessert mix or any other that does not contain corn in the flavorings.
It is unknown if this will mixture will set up well enough with all-vegetarian gelatin (agar agar).