With the Hanhi affiliate program, you can currently earn 50% on every purchase that your customers make. Simply sign up to receive a discount code, then promote it. Whenever someone uses your code, they receive 10% off while you receive $0.50 per person per competition that your customer makes. The code never expires, so you receive a percentage for as long as the customer uses Hanhi*. How you promote the code, however, is up to you.
*Assuming that the customer always uses their discount code