Woocommerce Gift Card plugin allows you to sell redeemable gift cards on your Woocommerce store. The gift cards are coupon codes which are generated automatically and can be applied to carts or products at checkout. It gets more interesting as you can send gift cards to other people. Ramson adds a gift card to cart and on checkout,on the field “I’m sending this Gift Card to someone” he enters Isaac’s email and name then Isaac receives the gift card.

Demo: http://codecanyon.net/item/woocommerce-gift-card/6234900