Yes! When a shirt is ordered the buyer will automatically be sent an order confirmation that contains a unique shareable link. Each time an order is placed from this link a $5 credit will be issued to the original purchaser.
The credits can add up to as much as the total of the order’s cost. This credit comes out of the campaign’s profit.
This incentive should encourage sharing and boost sales overall in order to make up the difference for the decrease in profit.