Calling all vegans and eco-warriors: you'll love this candle that uses waste cooking oil from vegan cafés and restaurants and turns it into an aromatherapeutic candle. Phena London Dusk (£36) soothes the senses with notes of lavender, chamomile, and clary sage. Plus, 10 percent of proceeds for the rest of the month will go toward the environmental campaigning community Friends of the Earth.