The Most Uncommon Ad Space Type You've Ever Seen

Commuters in Japan are being paid to carry advertising stickers in an unusual space while riding public transportation.

A Japanese advertising company called Wakino has come up with a unique way to get its clients' products to the attention of the target audience, by putting advertisements on young ladies' armpits.

An armpit rental ad starts from about 10,000 yen (approx. $91) an hour, and the ads come in diverse sizes and are in color.

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