This is the "Mario Brothers Cat Tree" made by the Instructables user Geckoo_Designs, although the intended user is cats there's nothing stopping you from using it (except your extreme and very rare case of big-boneitis). Although the quality of the tree isn't Ikea quality it's much better than you or I could do - okay, maybe just you, have you seen my blogging skills? They're almost as good as my DIY skills.
Via Geekologie
