Eco-Postcard

This helps the environment by providing more plants to absorb Co2. Millions of postcards and greetings cards are sent all over the world every day, and other than the message contained within they don't really serve any other purpose. What if you could send someone a greeting card or postcard with the same message but also the ability to grow something. The Eco-Postcard can be customised with your picture and seed type, you can send a valentines card which grows roses or a Christmas card that grows ivy. or even a postcard from your travels that grows a plant from that part of the world.

Image Source - dontsendmeacard.com

You can use them as ecological gadgets to promote either a company or a product, as either a souvenir or a tourist postcard, and also as greeting card for special occasions…
Source - Eco-Postcard