About Tumball, from BoardGameGeek:
On your turn, pick up a Bead from your channel and place it on the end of your Wand. Holding the Wand by the other end, carefully place the Bead on top of the cluster of Colored Balls.
When you're ready, pull the Wand away. Your turn ends when one of the following occurs:
A. You successfully place a Bead on the Cluster.
B. You accidentally drop your Bead before you place it on the Cluster. If this happens, pick up the fallen Bead and add it to your Channel.
C. You cause one or more of the Beads on the Cluster to fall. Pick up the fallen Beads and add them to your collection.
The next player to your left takes a turn.
The first player to get rid of all their Beads by placing them on the Cluster wins the game!
-description from publisher's website
