Since I was a small child, my grandparents have given all of their grandchildren savings bonds on our birthdays. I'm not sure if it makes a difference, but they are always "EE" series. I had to use some of mine while I was in college (one of my scholarships didn't go through one year), but I have one left from 1993 and all of them from 2005 to present. It seems to me that bonds are very slow to grow and often have pitifully low interest rates.
Can you think of any other form of investment that is as stable (or almost as stable) but gives better returns? I'd like to recommend a more fruitful investing form to my grandparents.