Guests are now able to picture themselves (or other loved ones) on their very own refillable Disney Gift Card. The cards are available both online at the Disney Store and in person at Exposition Hall at the Magic Kingdom at Walt Disney World.
There appears to be no additional charge for the customization.
Be aware that there are a few supplemental terms and conditions which are viewable online after uploading the photo (but prior to purchasing). They appear to be fairly non-restrictive, but do include the warning that DisneyStore.com can replace the personalized Disney Gift Card with a more generic one if they find the image to be in violation of the terms.