You could use the voice module to trigger an action to take a photo and store it in a local directory then use a image module to display the image.

I wanted to do something similar to keep track of which tie I had worn during the week. Display a photo strip of the last 5 ties… I ended up solving it with a low-tech solution. I used to tie racks. I take a “new” tie off the first rack, then when I get home put the tie on the “worn” rack. Then when it is full, move all the ties to the first rack. ;)

I have used ook hangers to hang 50lb. objects. Here is one rated for 75lbs.

http://picturehangers.ooks.com/item/professional-hanging-line/tremor-hangers-2/53102

You can find them at lots of places locally. It will leave three tiny holes that are easy to cover up later.