Well let me start by telling you that I too was, and still am a tier upper. When I was two, my mom told me it all started by me watching cartoons where the bad guys were tied up. Remember Dick Dastardly? May have been before your time. Anyway, my grandmas neighbor was in to the art of Macrome. One day my grandma took me over and I was watching her and became very fascinated. She started teaching me with simple knots, then moved on gradually. By the time I was 4, my mother and grandmother were amazed at the wall hangings, pot hangers, and creations I was making.
Try getting her involved with learning Macrome. There are several books out there at Hobby Lobby that can teach you the step by step art. That could be something the two of you could work on as a project. Then as she progresses, you can get her into craft classes where she can learn to make beaded jewelry, doll hair, learn different braids etc. You could also get her involved with the Sunshine Girls, Brownies, Girl Scouts, etc, as they have projects dealing with knots, tie dying, etc.
Just a thought. It helped me. I can tie boat knots better than any man I know. lol. Good luck and enjoy the fun.