This isn't a gift card deal per se, but I just purchased $20 in Disney gift cards ($10x2) off Newegg for $3 on a Black Friday deal.
I was buying some software anyway and a box popped up with a code if I made a minimum purchase (it said 5 items, but I didn't do that and it still worked), I could plug in a code and get $17 off. My software didn't qualify for the discount so for fun, I searched out Disney gift cards. Turns out they only sell them in $10 denominations ecards far as I can tell. I put 2 in my cart and then code took. so basically since I was making a purchase anyway, it came out to $3 extra.
If anyone is interested or is planning to purchase tech items anyway, here is the code: $17 off w/ promo code BFCY2Z832, limited offer
Edited: I'm not sure if this would work for straight gift card purchases?