If it sounds great and smells great - a must buy.

• Marketing tricks I learned from TV shows (on discovery):
• When a supermarket played Spanish music on wine aisle, they sold three times more Spanish wine then French. Then they changed nothing but the music - to French and sold five times more French wine than Spanish. When interviewed, the consumers said that the music had no impact on their wine choices.
• Real estate agents use odors of fresh bread, frying bacon and fresh coffee, to sell. Pleasant smells are also getting more and more popular with clothes shops and auto dealers.

1. Find some smell and sound manipulation devices.
2. Sell it to local shops and car dealers.
3. Make sure you don't cross the line and start breaking fair competition rules.