In terms of life-improving substances, Silicon has always been pretty high up there on the list. Responsible for, amongst other things; microchips, explosives, breast implants and, most importantly, we think you'll agree, quick release cake moulds such as this fantastic Happy Birthday Cake Mould. If ever there was an opportunity to get your pinny on and do some proper old-fashioned baking then this is it. The silicon cake mould is in a whole different league to baking trays of old - not only does it do the stressful job of decorating for you, (with a swish, ready made "Happy Birthday" moulded into the design), but you can also bung it in the dishwasher after creating your masterpiece, saving you from the mundane ritual of the kitchen sink. It's non-stick, so your cheeky cake greeting won't get stuck to the mould like, well, a really sticky thing (let's face it, there's nothing worse than a "hapy birtdy" cake), and with a whopping 23cm diameter, there's bound to be enough cake for everyone!