People have only been drinking Tea for, oh I don't know, centuries? A bag of Earl Grey and an Ikea mug have become standard routine. Yet industrial designers have only been thinking of new ways to design mugs recently. Industrial artist Lee Weilang took his inspiration from fabric that has zips in it. With this in mind, he created the Zipper Cup. The zip parting at the top allows for an easy placement of the tea bag's string. An altogether attractive and useful design.