First time I've seen something like this although it's been around for a few years now. It's a different technique to used to apply graphics to a solid object. Reminds me of the old Tie Die days back in the 70's but without the rose coloured glasses.
I'm not sure what it costs be the speed in which you could apply graphics to a tank / wheels / helmet is quite impressive. Given the fact that you could also create any graphic that you wanted.
Looks like you can also achieve somewhat of a transparent finish too.