If Apple gave every individual the chance to design their own hardware that catered for their own needs perfectly and fulfilled their aesthetic desires, then I am pretty sure we would see a collection of weird and wonderfully bizarre Macs knocking around the world. Fortunately for our sanity, they don't offer such a bespoke design service, meaning we will just have to live with the excellence that they currently provide, but that doesn't stop designers from producing their own unique concept designs.