I made a contact sheet in Photoshop of some of my drawings and photos in order to reuse them as focal points in collages and on journal pages. This is one of the first of my Bare Bones series of tree drawings on sewn paper collage backgrounds.
Making a contact sheet of small photos for a variety of uses is quite easy. I use Photoshop 7. Go to File > Automate > Contact Sheet II. Set your numbers and watch the magic happen. I use the $17 packet of glossy paper from Costco or else the matte paper from Staples that you can print on each side. Printing on each side works well if you want your photos to become book pages.
Probably you can make contact sheets with Photoshop Elements and most other photo software. Cut them out and glue them to a magnetic backing for quickly made giveaways.