Happy 4th to all!
I played with this particular image generator Tag Galaxy awhile back (months, years?) but just came across it again. It uses photos from our friend Flickr...who doesn't?
If you are in a playful, messin' around mood just go and throw out a keyword or two and see what happens. You will have to pull yourself away!
No, I don't have any ideas how to use it in an educationally settings...not sure how you would pull pictures off (except thru screen print) and even less how you would credit them. Sometimes, things are just fun ...and should be enjoyed just for the fun!
It is as simple as this: