chocolate cake - watch the video to see (for stacking and carving the bus shape)
Swiss meringue buttercream - watch the video to see (blue colored, used between cake layers and for piping)
buttercream - watch the video to see (for coating the carved cake)
black fondant - watch the video to see (to cover the inside of the wheel wells)
light pink fondant - watch the video to see (to cover the entire bus cake)
Rice Krispie treats - watch the video to see (pressed in a loaf tin to create the cake platform base)
royal icing - watch the video to see (thin layer to coat platform and glue elements)
shortening - watch the video to see (to coat platform and cakeboard before covering with fondant)
blue fondant - watch the video to see (to cover the platform and cakeboard)
floral wire - watch the video to see (to create structure for cotton candy smoke)
cotton candy - watch the video to see (pressed onto floral wire to create smoke effect)
acetate sheet - watch the video to see (used as a base for piping buttercream and layering cake for side design)
yellow buttercream - watch the video to see (piped on acetate for side design)
black royal icing - watch the video to see (for piping lines around side design)
water - watch the video to see (used to glue fondant decorative elements)