Prepare double layer cake with frosting (see notes)
Unwrap marshmallow bunnies and place around the cake. Use extra frosting on back side of bunnies if they aren't sticking for glue.
Add sprinkles on top of cake and add eggs to center of cake. Done!
Notes
Prepare a double cake using your favorite vanilla cake mix and vanilla buttercream or make it from scratch here: Vanilla Cake with Vanilla Buttercream.