1 (3 oz.) pkg. Jello (cherry, lime, and lemon)
3/4 c. boiling water
3/4 c. eggnog
1/4 tsp. rum extract
2 c. Cool Whip

Separately prepare cherry and lime gelatins as directed on packages, reducing cold water for each to 1/2 cup. Pour into two 8 x 8 x 2 inch pans and chill until firm, at least 3 hours. Dissolve lemon gelatin in 3/4 cup boiling water. Add eggnog and rum extract. Chill until thickened. Cut cherry and lime gelatin into 1/2 inch cubes; measure 1/2 cup of each and set aside for garnish. Blend Cool Whip into thickened gelatin. Fold in remaining gelatin cubes. Spoon into mold and chill until firm, at least 4 hours. Unmold. Garnish with reserved gelatin cubes.