Everblock
Lego blocks are great for building almost anything you can imagine. Unfortunately, if you want those creations to be adult-sized, you're going to need a ton of Legos. Or just some Everblock modular building blocks. With a design reminiscent of the Danish toys, they can be assembled into chairs, shelves, tables, beds, room dividers, or even complete temporary structures. Just like their smaller counterparts, they can be reused simply by disassembling whatever you've created, and come in 12", 6", and 3" sizes, with finishing caps available to give them a smooth appearance.