Just commented on this over in the modelling forum, but I'll say something here too.  Really great work on that 3d print.  It's a testament to a great tutorial.. Congrats, both of you guys.  So the object is less than 2 inches, and about $15 with the least expensive material available?  Yikes.  Sounds pricy, but I imagine it's worth it to actually hold in your hand something you made yourself in 3D!  I'm sure there's people who love collecting shapes like that too, because I see a lot of 3d prints of complicated math stuff all over.  It's a beautiful object, luxxeon.