[New Lightning]

Speaking from experience I think that if you could pull it off, you'd better to do it really well. Because if you do go this route and your only okay at picking them up, then you have spent much time and effort into developing a mechanism that may or may not win you any awards or alliance selections. I personally don't think that the suction cups would be able to handle the weight of very many totes, or get simply bumped around enough while driving, to maintain suction. Just like in a car with a GPS system, if you hit a hard bump or swerve out of the way, or maybe even turn to sharply, you will lose the suction and then all your totes fall. But if you could do it well it would be impressive and memorable.