Halloween Jello Shots

1. Ready to party with Jello Shots?
2. From Delish.com
3. 2 cups tonic water
4. 2 packages Jell-O (two flavors; pineapple and orange)
5. 1 cup water
6. 1 cup vodka
7. Make the first layer: Pour one cup of tonic water into a pot over high heat. 
8. Once it comes to a boil, add the pineapple Jell-O mix. 
9. Whisk until the mix has dissolved, then pour in half a cup of water and half a cup of vodka. 
10. Stir to combine.
11. Pour the Jell-O into shot glasses, filling them about 2/3s of the way up. 
12. Place them in the refrigerator to chill for about 30-35 minutes.
13. Make the second layer: As they set, start making the Orange Jell-O, following the same process used for the Pineapple Jell-O.
14. Top each of the pineapple Jell-O shot glasses with the orange Jell-O mixture. 
15. Return the shots to the fridge to set, about 2-3 hours.