When creating a dummy cake, it is not necessary to cover it in fondant. You have the flexibility to use buttercream or other decorative elements to achieve your desired look and
smash karts appearance.
If you prefer to use buttercream on a dummy cake, you can absolutely do so. However, keep in mind that buttercream may not provide the same smooth finish as fondant. You can apply buttercream to the dummy cake just like you would on a real cake, using a spatula or piping bags to create various textures and designs. It's important to note that buttercream may not hold up as well over an extended period compared to fondant, as it can soften or potentially melt depending on the environment.
