Adonboard

Your suitcase has been working for free. It goes through airports, hotels and

train stations, and nobody pays you for it.

Adonboard is a marketplace for that space. Travellers mark out sticker spots on

their case, set a price and say where they are flying. Brands bid for the spots

they want, and every bid has to double the one before it.

When bidding closes the winner is charged, the traveller applies the sticker and

photographs it on the real suitcase. That photo is what releases the money. If

the sticker never goes on, the brand is refunded automatically.

A spot costs 30 to 95 euro. Listing is free; Adonboard takes 10% of a winning bid.