Remove the cakes from the pans and onto the cake boards
Using a cake slicer, slice off the tops of the cakes to create a flat cake layer
Using one of the cake layers as the bottom layer, scoop the purple frosting onto the cake layer and spread it evenly
Place a second cake layer on top
Scoop the blue frosting on top of the cake layer and spread evenly
Place the third cake layer on top of the frosting
Smooth the two frostings on the outside to create a smooth layer on the outside
Using the white frosting, completely coat the cake in the white frosting and smooth evenly
Place the cake onto a cookie sheet
Using the sprinkles, completely coat the cake in the sprinkles
Once coated, place them in the fridge for a few hours to allow them to harden
Enjoy!