Totally adorable quilt~! I am in a quilt group in Fredericksburg Virginia called the Wannabees. One quilter brought in a child's quilt and she had taken all of the fabrics that she used in the quilt and randomly sewed them into strips...used 2 1/2 inch or whatever size width x however wide she wanted the border. You could consider stripping blue and yellow together and border it that way. If this doesn't make any sense...let me know and I will try to explain it better. It is 1:00 am and I am somewhat fuzzy!! Cathy