"This Business Card I Got A While Ago Is Also A Set Of Lock Picks"
"Recycled Paper And Scrap Fabric Business Cards"
"Miniature Scribble Slates Were Used To Create Unique, Interactive Business Cards"
"Business Card For My Brother-In-Law's New Salon"
"This Company's Business Card Is A Golden Coin"
"I Designed My Business Cards To Be Trading Cards, And When I Need To Give Them One, I Have Them Draw A Card"
"The Way I Found To Make My Business Card Simple, Different, And That Reflects My Work"
"Artist That Makes Wooden Maps Gave Me His Business Card, Of A Wooden Map"
"Reclaimed Wooden Business Cards"
"This Business Card For A Suit Store Has Pop-Out Collar Stays"
"This Business Card For A Mexican Restaurant Shaped Like A Taco"
"Window Cleaner Business Card"
"Business Cards Made Of PCB (Printed Circuit Board) I've Collected From Guitar Pedal Makers"
"Dublin Restaurant's Business Card Is Their Menu"
"I Spent Way Too Much Time Making Just A Handful Of Overcomplicated Business Cards. But It Was A Fun Project To Do"
"Best Bartender Business Card Ever"
"Cards For A Brick Supplier In Houston"
"My Real Estate Agent Has Gold Metal Business Cards"
"My Son Received A "Business" Card From A Classmate"
"This Van Has Magnetic Business Cards That You Are Welcome To Have"
those things are quite thick, so they don't hurt as bad as you'd imagine. Also, they're for emergencies, not for you day-to-day maintenance.
Also, business cards are basically an ad, and to promote you business, you invest in ads. Preferably a more memorable one than the competition. Same is true for business cards!
#24 "I'm a producer, please accept this computer virus."
#27 The fact that it's from Kevin Mitnick makes it even cooler
These ones that don't easily fit in your wallet will get thrown in a drawer or accidentally thrown out and the person may remember the business card, but probably not the company/website and now they're calling the first result on Google instead.