My oldest daughter asked me to make a book bag for my three year old grandson to take to the library. She wanted it to be wide enough to accommodate large books that were 12 inches wide, so I modified the pattern that I used earlier this year for a bag for my mother, and made this bag. It measures about 15 inches tall, with a base that is 5 inches by 12 inches.
She suggested either trains or big trucks for the theme. I couldn't find any train fabric that I liked, but I found this fabric with heavy equipment on it at Hobby Lobby. I think he should like it, and I think it will hold plenty of toddler books. I hope mom and son both like it and enjoy it.