Slice off the tops and tips of strawberries, making sure to not create a hole in the bottom. Using a small melon baller, gently scoop out inside of strawberry, creating a "shot glass." Discard insides.
In a large bowl, whisk together Jell-o and water until completely dissolved. Add rum and lime juice and whisk to combine.
Carefully pour Jell-o mixture into strawberries. Refrigerate until firm, 3 to 4 hours.
Dip tops of strawberries in sugar. Serve.
Recipe by 5* trending recipes with videos at https://food.theffeed.com/2019/08/30/strawberry-daiquiri-jell-o-shots/