In a small saucepan over low heat, whisk together lemon sparkling water, sugar, tap water and gelatin. It will be a little frothy, this is normal. Wait for it to die down.
Reduce heat to low, whisking constantly. Remove from heat right before the mixture starts to simmer.
Stir in sparkling wine and vodka.
For shots:
Distribute the liquid evenly among shot glasses, and place in the refrigerator for 3 hours to set.
After they have set, the tops will still be tacky, top with festive sprinkles.
For cutouts:
Coat an 8x8 or 9x9 baking dish with cooking spray.
Pour liquid into baking dish and chill for 3 hours or until set.
When ready to make cutouts, gently release edges using a butter knife. Invert onto a cutting board lined with parchment to prevent sticking.
Using 1-2 inch cookie cutters, make desired shapes and decorate with festive sprinkles.
If you've made this recipe, come back and let us know how it was in the comments or ratings!
Notes
For non-alcoholic shots, substitute Sparkling Cider for sparkling wine.