I gave her a slightly wonky Digital Rebel some time back (the first one I bought had a mirror that wouldn't return fully if you took a picture with the camera pointing down; you'd have to snap another frame holding the camera level or pointing up to get it to return properly.) She'd been using it to take pictures of electronics projects for the most part.
Since I switched over to a Nikon DSLR for work, I basically handed over the Rebel XTi and the EOS 20D and the EF-S lenses*. Last night she pulled the 20D off the shelf for the first time to photograph a denizen of the back yard. I need to show her where the macro lens is and watch her go to town with it.
*I still can use the EF lenses with the couple late Canon film SLRs I have.