Surf's up cake

Ingredients

• Equipment
• 1 medium ziptop plastic bag
• oven tray
• small palette knife
• 30 centimetre x 45cm rectangular cake board
• 1 large ziptop plastic bag
• Cake
• 450 gram packet double unfilled sponge slabs
• 453 gram tub vanilla frosting
• blue food colouring gel
• Decorations
• 50 gram white chocolate melts
• orange food colouring suitable for chocolate
• 1 red fruit ring
• 1 large waffle ice-cream cone
• 250 gram plain sweet biscuits
• 2 rainbow sour straps
• 2 small wooden skewers
• 1 licorice allsort, green layer only
• 1 yellow bootlace