To make the frozen hand: Wash and rinse the outside of a rubber glove. Turn glove inside out and set aside.
In a 4 cup measuring cup, combine the thawed raspberries and cranberry juice.
Pour 2 cups of the raspberry mixture into a small saucepan. Sprinkle the gelatin over and let stand 2 minutes. Warm over low heat, stirring constantly, just until gelatin dissolves. Mix back into the reserved raspberry mixture in the measuring cup.
Pour raspberry mixture into the inverted glove. Gather up the top of the glove and tie securely with kitchen twine. Freeze until solid, several days if possible.
To serve: Carefully cut glove away from frozen hand. Place frozen hand, palm side up, leaning against the side of a large punch bowl. Pour in ginger ale and sparkling cider. Garnish with gummy snakes.
