-drained Prepare cake mixes as directed on packages for round cakes. Cool cakes 5-7 minutes; remove from pans. Cool completely. Place on baking sheet and freeze uncovered until firm, about 2 hours. Prepare pineapple filling. Split cakes to make 4 layers. Place 1 chocolate layer rounded side down on plate; drizzle with 2 teaspoons of the rum. Spread 1/3 of the pineapple filling (about 1 cup) over rum. Repeat with 1 banana layer and 1 chocolate layer. Top with 1 banana layer rounded side up. Prepare frosting mix as directed on package; frost top and sides of cake. PINEAPPLE FILLING: Beat whipping cream and 2 teaspoons vanilla in chilled bowl until stiff. Fold in crushed pineapple, well drained. NOTE: Celebration Cake can be made up to 1 month ahead of time, then filled, wrapped and frozen unfrosted. Thaw and decorate cake the same day it is served. (Thawing takes about 5 hours; cake can be frosted and decorated before it is completely thawed.) ----