Preheat your oven 350 and cover two 9-inch cake pans with parchment paper. Set aside
Either make your cake recipes or make the boxed cake mixes according to box directions. Pour the vanilla into one cake pan and the chocolate in the other (the cake mixes make double the amount of cake batter, so only pour in half of the batters into the cake pans.
Bake your cakes according to box instructions and set aside to cool completely. Once cooled, pop them out of the cake pans and set on a wire rack while you get your frostings ready
Either make your pink, yellow and chocolate frostings or set the store bought ones out in front of you so they’re ready to use as you assemble your cake
Cut both cakes in half. Stack the cut-in-half vanilla and chocolate cakes and stack them on top of each other and connect the two (see pictures above). Shave off the top if needed to make them even
Add one layer of pink frosting in between the vanilla cake layers and one layer of chocolate frosting in between the chocolate layers. Then using the rest of the frostings, frost the outside of the cake until even
Using the tube of yellow decorating frosting or your own vanilla frosting with yellow food coloring in a pastry bag, pipe out yellow circles around the pink side of the cake.
Decorate the chocolate side of the cake with gummy worms and raspberries and the pink side of the cake with star sprinkles
Stick in some candles and cut the cake! Serve! You can store in an airtight container for up to 3 days. Enjoy!:)