The majority of people are just posting ripped tankmen heads with shitty 4chan fads in a text bubble.
hEY GUYS I GOT A BRILLIANT IDEA LETS RIP A TANKMEN HEAD FROM JOHNNYUTAHS FLASH AND PUT SHIT ABOUT BARREL ROLLS BEHIND IT IT WILL BE HILARIOUS AND WE'LL MAKE MILLIONS FOR OUR INNOVATIVE CREATION
then there's a bunch of madness shirts
obviously people see the $200 dollars and instantly go HEY IM GONNA SLAP A REUSED DRAWING OF MY FAVORITE CARTOON AND I'LL WIN BECAUSE CLEARLY EVERYONE LIKES IT AS WELL
then again, my ideas arent that great either. I think Wally's Jewgrounds idea should be the winner. :)