Whenever a grandchild of mine graduates from High School, they receive a crocheted afghan from their Grandma. My third grand, Zach, graduates in the spring. I asked his Mom, my daughter Jill, to pick out the yarn for me. She knows better the colors he would like. This is what she brought me yesterday. (The pictures aren't very good, but at least they will give you an idea of colors and patterns.)
I wasn't quite sure just what to do with them. I only do the Granny Square pattern. It is easy to do and if I try to crochet a pattern that involves counting stitches or rows, I tend to get lost or mess it up. I experimented with several variations and decided I liked this one the best.
Each square is 7.5 inches across, so it will take at least 81 squares plus a good sized border to make the afghan big enough to cover my 6 ft. tall grandson.
I suppose I could just buy a graduation gift or give my grands cash. And I don't expect them, at that age, to appreciate a handmade gift. But when they are older, they might like to have something their Grandma made just for them. I know I would.