1 (10 ounce) package frozen orange flavored Jell-O mix
1 cup boiling water
1 cup orange juice
1 cup vodka
1 cup pineapple juice
In a large saucepan, combine orange gelatin and boiling water; boil, stirring occasionally, until gelatin dissolves. Remove from heat. Stir in orange juice, pineapple juice and vodka. Pour mixture into prepared mold. Cover mold loosely with aluminum foil. Refrigerate 1 to 3 hours or overnight. When ready to use, place one mold at a time into mold; chill in refrigerator, cutting mold every time after molding.
Remove mold from refrigerator, and place into heated mold holder. Refrigerate overnight. Remove mold from refrigerator, and chill in refrigerator, cutting mold every time after molding.
Fold orange gelatin mixture, pineapple and pineapple into mold. Cover tightly with aluminum foil. Refrigerate at least 4 hours before serving.