Dissolve 1 pkg 3oz peach flavored gelatin in 1 cup boiling water.
Add 2 cups ice cubes; stir until gelatin begins to thicken , 3 to 5 minutes.
Remove unmelted ice. Pour into 8 to 10 parfait glasses and tilt glasses against refrigerator wall bases between bars of rack. Chill until set, about 20 minutes.
Then prepare 1 pkg 3oz raspberry flavored gelatin, with 1 cup boiling water and 2 cups ice cubes as directed above.
Drain 1 can sliced peaches. Place peach slice in glass and top with raspberry gelatin. Stand glasses up right; Chill until set, about 30 minutes.