This prop cannot be missing in your erotic collection. A feather teaser is essential to increase desire and excitement. If you run its soft feathers on your lover's skin, you will notice how she / he is stimulated even more every moment.
A trick: try to cover her / him eyes, your lover will not know where will feel the pleasure and the uncertainty will increase the excitement.
You can intersperse faster with slower moments to play with this very very sensual feather...