We used magnetic letters to play spelling games because it helped take the fine motor component (which was and is a problem for my son)out of the equation. All he had to remember then was how to spell the word. He was younger than your DD, but we played one game where we took turns making words for each other to spell out and to read phonetically. He would delight in giving me loooong chains of consonants to "sound out" just to hear me sputter and contort my face. It was a great way to build word family/pattern recognition, though, because it was very obvious if I was only changing the initial letters, or the final letters, or the central vowels. She might like something like that in addition to the writing games. Sounds like she is really moving ahead in lots of ways, including the all-important decreasing perfectionism!