Line up all your 1 oz disposable shot cups on a flat tray or baking pan. Make sure the tray fits in your refrigerator before you start.
In a large measuring cup or mixing bowl with a pour spout, add 1 cup of boiling water.
Pour in the entire 3 oz packet of blue raspberry gelatin mix. Whisk vigorously for about 2 minutes until every granule is fully dissolved and the liquid is smooth and bright blue.
Add 1 cup of vodka (or cold water) to the dissolved gelatin mixture. Whisk again to fully combine.
Carefully pour the blue jello mixture into each shot cup, filling nearly to the top. Leave a very small amount of space at the rim.
Transfer the tray carefully to the refrigerator. Chill for a minimum of 3 hours, or overnight, until the jello shots are completely firm and set.
Once fully set, place one peach ring gummy flat on top of each shot cup.
Cut one gummy bear in half and press it upright into the center hole of each peach ring so it stands up like a bear on a pool floatie.
Keep refrigerated until ready to serve. Store on ice if serving outdoors.