I remember when I was younger my mom got me a book on dream interpretation. In the book I remember there was a section about "Sky Axes" which are essentially charms/small objects you put under your pillow to control what kind of dream you had. I remember how they made them, you wrap a piece of cloth or ribbon around the item that is representative of the kind of dream you want and then you focus on the color. When focusing on the color and intent you should imagine it radiating from the object and stop when you think you're done. I forgot which tradition this is from so I apologize for that; when I can get a hold of the book I will tell you which tradition it's from.
I'm curious though, has anyone else heard of these or is it just this one book?