My son is 5 and when he was a baby. I used blankets for so much more than in the crib. It is important to have many, for taking in the car, to the park, in the stroller, and just playing on the floor around the house. He still uses his baby quilts in his reading corner and watching TV.
If it was me I would make a D9P with the bunnies in the large squares. They are simple to make and look much more complicated.