In a medium pot, boil 1.5 cups of water over medium heat.
Remove from heat, add gelatin or jello mixture and stir for 3 minutes.
Add 1.5 cups of cold water and stir.
Add food coloring and stir.
Fill the syringes by placing the tip of the syringe in the mixture and pulling up a syringe.
Refridgerate for 2-3 hours.