Scientific Anglers 

Groove Practice Fly Rod

The Groove might be the greatest cat toy ever invented. The good news is that it will also help you improve your cast. Built using fly-rod design principles on a micro scale, the Groove practice fly rod perfectly imitates the action of a fly rod and can help you iron out the kinks in your cast without stepping foot on the water or going outside. Warning: some co-workers may not appreciate you practicing in the office. We speak from experience.