Ice sides and background areas of cake smooth. Outline car with tip 3 and fill in with tip 18 stars. Pipe-in bride and groom's head with tip 5 (smooth with finger dipped in cornstarch). Pipe in hair with tip 3. Pipe tip 2 eyes, mouth (smooth with finger dipped in cornstarch); pipe tip 5 nose. Fill in veil area with tip 3 and add tip 102 ruffle on top. Randomly pipe tip 5 bead hearts on cake top. Add tip 2 necks and bow tie.