The iPad 2 might have a camera, but it is a pretty terrible one-- which is why the Disney-branded Sakar AppClix camera might make an interesting purchase for your customers.
It attaches to the tablet via Apple 30-pin port and works with a free Disney Pix app. Specification-wise, it has a 7.1MP camera (with 4X zoom), a microSD card slot and a 1.5" LCD display for photo previews.
The app allows basic editing and the addition of Disney-themed graphics to photos, as well as picture transfer to email and social networks.
Yes it does look rather awkward to use, but this Mickey Mouse shooter might be the closest thing to a proper iPad camera until Apple reveals the iPad 3 has a truly worthy shooter... Either way, it should be a ideal for customers' last minute Christmas stocking stuffing.