Holy cow you have a full plate. Why not put in the invites to bring a plate of something. Or bring desserts.
However, have you ever done pictures on fabric? You could have someone snap a few pictures at the party then make a wallhanging or quilt out of the pictures to give to him for Christmas or something. I did that for my mom and dads 50th. I also had sqaures of fabric that I had everyone sign that I included in the quilt. (make sure you use a fabric pen) :thumbup: I can post a picture of the quilt I did for my mom and dad if you want to see it.