ahahhahaha this thread makes me excited to :
A: go to a cosplay or an anthro con
and B: tour america with my friends pranking wal-marts
ok here's a few
1) (you have to keep a straight face) designate a walmart shopper and follow them throughout the store staring at them and crawling on all fours like a lizard. SAY NOTHING, when they turn to look or yell at you, wink, flick out your tongue, or do both- all the while staring. . .
2)When a customers back is turned take their cart and start walking away without saying a word. . .
3) (for this I recomend a giant group of friends) grab every awkward produce walmart has to sell (i.e. condoms, vibraters, etc.) and then ninja them into the carts and baskets of unsuspecting shoppers
4) (have a lookout for this one) hang out around one of the many intercom phones placed throughout walmart- when you figure out how to work it have a friend watch your back while you dial it and announce something silly for the whole store to hear
5)pick a shopper to stalk- and every time their back is turned do a funny dance, then when they turn around to look freeze innocently and look at a product on the shelves.
6) get a gaggle of friends to dress up in wierd costumes, get music and lighting, then stage an epic battle in the center of walmart
7) follow a random person and talk like a guy filming a documentary i.e. "the great lumbering shopperus pendificus makes it's way slowly towards its ritualistic feeding grounds. . ."
Pick up a book from the book aisle and a pen and get as many people to sign it as you can, then put it back :3
9) set all the alarms to go off at random 5-minute intervals throughout the day
10) build a fort out of pillows or tires and as a knight should valiantly defend your castle from all tresspassers
11) in the bed spread secction remove one of the big packages, crawl onto the shelf, and have a friend cover you up again, then have the friend lure a random person to the spot so you can jump out and scream (if you are doing this to REALLY REALLY random people be prepared to be punched 0_o)
12) this is the easiest to do- just act and dress really really wierd, screech randomly etc.
13) have a friend pose as your lover, and then get into a very loud and VERY DETAILED fight over who cheated on who.
14) when no one is looking switch/ paste over the bathroom signs
and finally- film your work
I know they don't allow video cams in walmart but there are ways around that- I won't be specific here but if you look it up you will find and answer on how to sneakily film your pranks.