
Agency Bos from Toronto created a business card for Head2Head that served a dual purpose. Not only does it provide a functional benefit (given that each card contained 5 perforated filters), but it also adds a stickiness factor because the card would be something you'd hold onto and refer to, as frequently as you smoked.

The Paint & Cia's Paint Card reads:

Choko la's candy wrapper business card

Bart Turkey created this card for a fitness trainer. It demonstrates what the trainer does best. Slims clients down.

A business card that is, indeed, a tiny envelope. With this was tied the message: NO DELIVERY TOO SMALL

OCB rolling paper business cards demonstrate the product.

Mais Pilates Studio's "wake up your body" business card.

Paddison Prestige Roofing's business card can serve as a roof for a lady bug trying to avoid rain

You can make the holes big enough so you can put your fingers through to complete the picture, like on this card for Yoga classes.

I know this idea has been done before for photographers, but still like this one because it makes a good use of the die-cut on both sides.

Nowadays, you can print any object with ink jet printers that shoot the ink drops through a distance of up to 10cm. Not just peanuts like on this example. You can even print the surface of water in a glass, which is of course not very portable, but still, the possibilities are endless.

Toys, like these lego figures work just as well.

Laser cutted/laser engraved stainless steel card with three functional breakaway wrenches for Rob Wolkers product developer.

Regards,
Jitesh Navlani