Advertising Copywriting - Tervis Promo

For my Tervis Tumbler campaign I created a small side proect based on a possible promotion for their company. The basic concept: Any customer could go on their website and learn about how they were trying to be a more environmentally savvy company. But how can a customer feel like they're part of the process - and then spread the inspiration with their friends? With this promotion, each customer who purchases a four-pack of tumblers would receive a specially packaged seed-pack. It would come in colorful packaging complete with quotes about environmentalism and the good work that Tervis does in eliminating water bottles, etc. When purchasing online, they would have the option to submit a friend's home address so they could also receive their own seed packet.