You may already know, but if you have a credit card that gives points or cash back at places that sell gift cards, you could purchase Visa gift cards for x% back, use those to buy discounted target gift cards at sites like cardpool.com (another 2-6% back), and then use the target gift cards plus Red card to buy Disney gift cards at 5% off
For example: if you want to earn on your Disney CC to get 2% back, buy the visa gift cards at a grocery store or gas station. This would give you 2% + 2-6% + 5% back!