Plan to make these at least a day ahead of time.
100 flexible plastic straws (The straws with a bendable neck make the most realistic worms by adding ridges to the worm. Place bendable necks of straws at the bottom of the container).
an empty, cleaned 1-quart milk or orange juice carton to hold straws. (The straws will fill up to the height of the container, the taller the better.)
1 package (6 ounces) raspberry or grape flavor gelatin 3 envelopes unflavored gelatin
3 cups boiling water
3/4 cup whipping cream
12 to 15 drops green food coloring waxed paper
Combine gelatin in a bowl and add boiling water;
stir until gelatin completely dissolve. Chill until lukewarm, about 20 min.
Meanwhile, gently pull straws to extend to full length; place in tall container.
Wrap together with a loose rubber band to hold straws together.
Blend cream and food coloring with the lukewarm gelatin mixture.
Carefully pour into container, filling straws.
Chill until gelatin is firm, at least 8 hours, or cover and chill up to 2 days.
Pull straws from container or, if you're using a carton, simply tear the carton away from the filled straws. Pull straws apart.
Run hot tap water for about 2 seconds over 3 to 4 straws at a time.
Starting at the empty ends, push worms from straws with rolling pin, or use your fingers.
Lay worms on waxed paper-lined baking sheets.
Cover and chill until ready to use, at least 1 hour or up to 2 days.
Worms will hold at room temperature for about 2 hours
If you want to see them or know more check out The Idea Room, Amy did a great job on hers.