Adrian has an entire collection of fiddle toys in front of his bed, that he uses while I read for him at bedtime. (Currently reading: Howard Pyle’s Robin Hood.) These have accumulated over the past few years. The magic snakes appear to be the best, because they satisfy both his fingers and his brain. They were a bit loud and “clicky” to begin with, but with some use they’ve softened. Or maybe I’ve just gotten used to the slight noise.