In Mumbai, the Spar restaurant placed giant seashells with the ad "Looking for seafood?" inside. The idea is quite simple, but you need to be prepared that such shells will quickly be broken or stolen - and they would be quite expensive to manufacture, so the process can be simplified.  

You need shells that will attract attention and are clearly not found in your region. Buy them on Avito and also place ads in them. You can find quite large and eye-catching shells for 200-500 rubles each. 

Who is it suitable for?

This way you can advertise seafood restaurants, jewelry salons and jewelry manufacturers (a reference to pearl hunting), and sea excursions. 

Cost

The whole advertising campaign will cost no more than 10-15 thousand rubles: 20 shells + stickers with ads or easy laser engraving.