Again, it's not like you have to physically go any where to photoshop any of that. I don't have to physically go to Paris to put myself in front of the Eiffel Tower. It could have been some random picture of someone holding up a 4000 point MS point card or anything. You can do quite a lot with photoshop.
Why not? If you know what you're doing, I'm sure it would be pretty easy. Take the revolution poster, change it around and format it to a card shape, and then throw it on a background like this:
and it's not as hard as you would think.