Check out the awesome that is the infinity bookcase by Dutch designer Job Koelewijn
Talk about algebraic geometry!
And while I am at it a few more infinity products:
Head on over to Cufflinks.com and buy your guy a pair of infinity cufflinks
An infinity sofa design called The Huit by French designer Emmanual Laffont de Mazieres
Visit Blissy Baby’s shop on Etsy to grab your own infinity bucket hat (I REALLY want one of these)
And what cookout would be complete without the infinity BBQ apron designed by Theresa Bayer and sold over at printfection.com