1.Preheat oven to 150°C (300°F). Grease and flour baking dish.
2.Make cakes according to directions on packets. Spread mixture into dish; bake about 50 minutes. Stand cake in dish 10 minutes before turning, top-side up, onto wire rack to cool.
3.Level cake top; turn cake cut-side down. Using pattern from pattern sheet, cut out shorts. Secure cake, cut-side down, on cake board with a little butter cream. Tint butter cream turquoise using both food colourings; spread all over cake.
4.Knead ready-made icing on surface dusted with a little sifted icing sugar until icing loses its stickiness. Roll icing on surface dusted with sifted icing sugar into a 3mm (⅛-inch) thickness. Using pattern from pattern sheet, cut waistband and two pockets from icing. Use skewer to make two holes in centre of waistband; thread cord through holes and tie ends in a bow. Position waistband and pockets on shorts.
5.Using picture as a guide, make flowers on shorts using jellybeans.
EQUIPMENT 26cm x 35cm (10 inch x 14 inch) baking dish 30cm x 40cm (12 inch x 16 inch) rectangular cake board bamboo skewer. The grommets have gone a-surfing — even fussy teenage boys and girls will want to ‘hang 10’ with this cool pair of board shorts. Use a skewer to make holes for cord in waistband. Thread cord through holes. Board shorts can be completed a day before the party.