If you think a regular business card is too ordinary, why not try a peanut card.
A Japanese company named Arigatou is using high grade CO2 laser engraving technology to print logos, names and telephone numbers on organic materials like beans, rice and peanuts.
These “Taberu Me” cards cost a bit more than regular cards, a set of 150 costs 5,800 yen (around $50). “Taberu” means “eat” and “Me” could either be “business card” in Japanese or “me” in English.
So depending on how you would like to interpret it you could end up saying, “Nice meeting you, here is my card, eat me!”