you have to have confidence in your ability, and then be tough enough to follow through. then you can explore adding green or black to the deck. must dig for book and yarn and see if they are compatible. and it won't make one bit of difference if i answer right or wrong. you have to get used to keeping an eye on this and its frustrating. "we usually find more people call us post-christmas. they are safe and nontoxic with little odor and thanks to their solid make-up, easy to handle. 