In a small pot over medium heat, stir together the water and sugar until the sugar dissolves.

Whisk in the gelatin until well combined. Then stir in the lemon juice and vodka. Allow the mixture to slightly cool before pouring it into your lemon rinds. When pouring, use a vessel with a small spout as this will make it much easier.

Cut lemons (or oranges) in half. Use a spoon to scoop out the insides. Don't worry; this is MUCH easier than using limes like we did for these mojito jello shots. Limes are kind of tough; lemons are easy.

Fill each half with the jello mixture while it's still liquid. I fill the bottom of a shallow dish, like a pie pan, with sugar to help hold the lemon rinds upright so the liquid doesn't pour out. Refrigerate and allow the jello to fully set (at least a couple hours or overnight). Once set, you can slice them up into smaller wedges. I sliced mine into three wedges per lemon half. Dip half the jello shot in a little sugar.