I like Andrea's suggestion of making the pictures into iron on transfers.  If the number seems managable and I can fit them all, that's what I'll do.  However, if this gets huge and I get too many photos to fit the shirt, I'll go with one of the other ideas.  At the very least, I am going to get all of your names on this shirt for everybody to see.  Since the walk isn't until June, I have plenty of time to figure it out.  
Again, thank you for all of your support.  Because of you, I want to succeed in raising lots of money for OCF.  
God Bless, 
Amy