Made up a quick template for wrapping the box.
[ATTACH]62420[/ATTACH]
https://app.box.com/s/j5b0tejm572owp1a9amhovvk7bdraman
Printed it on card stock, cut it out and traced it on the vinyl, cut it out and glued it on to one of the boxes with some E6000.
[ATTACH]62421[/ATTACH]
I colored the edges that I thought could show with a black marker. I also made sure the top edges lined up with the top of the box.
[ATTACH]62422[/ATTACH]
That made the bottom a little bit longer, which is going to make those corners hide better later, as the vinyl wrapped around those corners just a little bit.