About this 3D model

My first openSCAD model... It's now hollow! :D but I've not printed it yet. Made following this great tutorial: http://www.makerbot.com/blog/2011/01/28/openscad-basics-manipulating-forms/ Version 3: -Hollow (with optional slant just incase, like me, your printer is not magical with enhanced "Prints on Air"(r) technology or you don't have a stockpile of "Super Dense Nothing"(tm) lying around the house). Version 2: -More tapered top -A touch shorter