Pour water in a small saucepan. Add in the gelatin and let sit for 1-2 minutes, until the gelatin "blooms."
Then, heat over low heat, whisking the water constantly until the gelatin dissolves, about 5 minutes.
Now get two bowls out. Pour the flavored jello into the bowls, strawberry in one bowl and berry blue in the other bowl. Then, pour half of the water mixture into the strawberry bowl and the other half of the water mixture into the berry blue bowl. Mix until the flavored gelatin is dissolved.
Let the jello sit for a few minutes and then pour in the vodka, 1 cup in each bowl. Mix thoroughly.
Then, pour jello into separate containers to chill. I used 4 different containers (2 for strawberry and 2 for berry blue) so that my jello would be relatively thin and uniform in shape and size.
Put in the refrigerator for at least 4 hours until firm.