I have a box with redwork in it to grab and go. I take it to my mother's house every time I go to help her each week. I've got her started on a set of nine blocks that will someday go to a future great granddaughter. She has the beginnings of dimentia and this has helped her immensely to concentrate on her project instead of the confusion in her mind. She chose to do hers in purple instead of red, and loves that she doesn't have to figure out and change colors all the time.
ps I love your project. The colors are so nice and soft. Maybe I should give it a try someday.