2 (4 serving size) pkgs. Jello brand lime flavor gelatin
2 c. boiling water
1 c. cold water
1 c. chopped nuts (optional)
2 c. thawed Birds Eye Cool Whip
1 c. chopped peaches

Dissolve gelatin in boiling water. Add cold water. Measure 1 1/2 cups and chill until slightly thickened. Blend in whipped topping. Pour into Flintstones molds or another mold.