Definitely have a person in charge of photos, another in charge of printing, and another to do the business end of it and collect the $$$.
The caution there about printers being slow and over heating does concern me a bit. Needs some research.
There is also the idea of pre-printing "frames" of the wanted posters, that we set a picture into (kinda like the log ride pictures at Disney Land). Means we still need to print off a picture, but then the printer doesn't have to work as hard while at the event and if anyone has those Kodak picture printers, then people could get a higher quality color photo.
It also means we could get the frames printed off on slightly more sturdy card stock before hand. However this means more upfront costs, and having to try and determine what will sell, and how much, before hand, so we aren't left in the hole. It would drive the price up a little as well.
I see several categories for this
1- Simple wanted poster with picture photo-shopped into it and printed off as one unit on site. -lowest price
2- A captured poster with picture of trooper and person, shopped into the poster and printed off as one unit on site. -cost more jsut because we put the trooper in there.
3- Pre-printed frames of the wanted and captured posters, with a space to set a standard 4 by 7 color photo into the frame. Photo is printed on site. -most expensive, due to up-front costs, more pricey materials, but it is higher quality.
With every option we add to the list the more complex the process gets, more room for error. For starters it might be best to jsut go with option 1 and maybe 2 as well (since that jsut means having two different posters and a trooper stands in the picture).
I really like this idea and i think it could take off. But as FireStorm said, it will take a lot of time and effort, even if its simple. Just the fact of technology being a hassle will be a big hurdle.