Arrange the chocolate in the way you wish on a lined baking tray, (take a look at the video for ideas).
Place into a cold oven set to 45°C (some ovens may not go that low, you cannot put the chocolate above 48°C).
Check at 20 minutes, this will depend entirely on the chocolate you are using. Once the chocolate is liquid and glossy, remove from the oven, swirl to combine the colours however you wish and decorate with sprinkles, freeze dried fruit, edible flowers or anything else that takes your fancy.
Allow to come to room temperature and then place into the fridge until completely set. Remove from the tray and cut with a hot knife into whatever sized pieces you wish. Alternatively, break into shards. Package and gift! We used cookie boxes for ours...everyone wants one!