Ingredients
Method
1.Press ice-cream into clean, dry 2 litre plastic sand castle bucket; cover with foil, freeze overnight.
2.Dip base of bucket into hot water for a few seconds, invert ice-cream onto foil-covered tray; freeze 3 hours.
3.Meanwhile, place coconut, brown and yellow colouring in small plastic bag; rub colouring into coconut until evenly coloured.
4.Transfer ice-cream to 30cm-round prepared board. Quickly, press coconut all over cake, sprinkle remaining coconut around base of cake; freeze until required.
5.Just before serving, arrange chocolate sea shells around cake and position flag on top of cake.