Like all the best stuff in life, it's not only simple; it's free. Just check out the Free Stuff tables for fliers with the main four GBQ characters on 'em. If you can't pick them out at first sight, no worries-- there'll be a link to "greybouquet.com" right there on the flier.
If you find all four, you can match the back sides to build a super-sized, never-before-seen Grey Bouquet picture! (Or, in nerdspeak: you can form Voltron.)
What's the final product, you ask?
Pff. Cheaters. Fine, have yourselves some teaser pics...
Take our word for it: It's Hiroshima-licious.
