So, all you need to make some realistic(ish) looking coral is some royal icing (any colour will do; the more the merrier!) and some grape stalks...yes, you read that right, grape stalks!
Cut the big grape stalk into smaller pieces that you think will look interesting
Then go to work piping the royal icing onto it - it isn't an exact science so just stick it on there and you can always use a cocktail stick to manipulate it around the 'branches' a little if it's not looking quite to your liking
Once it's covered all over, leave it to dry and then
arrange it with other coloured corals, a bit of sea-life and some weed - voila, a mini-coral reef!
What do you think?