A Memory Mate is a collage of a smaller individual portrait, paired with a larger team portrait, all on one 8x10" photograph.
Typically, the team photo is about 5x7" in size, while the individual portrait is about 3x5" give or take a half inch. It's designed so that the two photos will fit nicely within the 8x10" space, with plenty of room for the team's or the league's logo.
This is done digitally, using a computerized paste-up process, then printed on a single 8x10" photo - this is not the generic cardboard memory mate that you may have seen in the past. It will be customized for your program, and I can usually place any logo or text so that it's especially desirable to your members.
The Memory Mate is typically the most popular item in sports photos and other programs.