Obox 2-for-1 Sale! Posted on September 25, 2009 by admin Obox Design is running a 2-for-1 sale on all themes. In other words… buy one get one free! It’s crazy stuff, that works out to $25 for each theme. So how do you do it? Simple, just choose your two favorite themes and use this coupon code: OBOXFRIDAY – Go!