Up and Down the Fingers
This is a move more usually done with a baton or devilstick, and the shape or weight of some clubs may make it difficult. Start as for a flourish moving the club through the first three positions, then simply allow the club to carry on down your fingers as shown below. The club rolls over each finger and is caught momentarily between the next two.
To get back up to the thumb just keep the momentum of the club going, and move through the five positions shown above in reverse order.