Did you know that buttercup flowers track the sun on cold days like mini golden satellite dishes? They can warm up this way by more than 3C. This makes the perfect excuse to treat yourself to a Buttercup Small Mug for when cloudless days arrive at last. Sit on the kitchen doorstep, with your hands cupped around a hot drink in your mug, and lift your face to wherever the sun sits in the sky to enjoy some spring warmth.