First about "hands": In addition to taking pictures of hands, I like to clip all the hands from the slick department store advertisements included with the newspaper.
I use them as a model for sketching a hand on a painting.
Sometimes, I use them in the collage.
Here is an important tip: use glue stick to glue them down rather than gel medium. After the glue stick is dry, then paint over the hand with a gel medium. For this I prefer Soft Gel Gloss. Then proceed to paint over the hand if you like. I have found that attaching this colored newsprint with gel medium causes it to wrinkle and not adhere smoothly.
I also use the hand as a template or pattern to trace around on my canvas and then paint.
So clip those hands.
...... then what to do with them?????
I have the neatest little pocket to keep my hands and fun stuff in.