I did a search and did not find where this topic has been beaten to death recently. I frequently use eyes on nymph and some floating patterns. I use small bead chain, large bead chain, plastic, mono, dumbbell about anything that I have available that appeals to me at the moment. I sometimes have painted them black and add gold pupils with nail polish, sometime I paint them gold with nail polish and add black pupils. Occasionally I use red for one or the other.
Do eyes make a difference? Do colors make a difference? What colors work for you? Do you change as light conditions change?
It's easier to fool people than to convince them that they have been fooled. Mark Twain