Not Disney, but since Starbucks is all over Disney parks (and everywhere else)...
When you buy a $10+ Starbucks eGift card using Visa Checkout, you get a $10 bonus (for a total of $20 Starbucks eGift card):
https://starbucks-promotion.cashstar.com
This promotion is limited to the first 225,000 people, so
HURRY. It's still working as of this posting.
The bonus is reflected at checkout (no waiting a day or more to receive the bonus), and I received a $20 Starbucks eGift card almost immediately after submitting my order.
Good luck!