Kicking a tree should sometimes knock off dead branches (represented in-game as a few clubs). It should be implemented a third type of tree looting, with its own looted flag, making it non-repeatable on the same tree.

Attacking with a boomerang in melee should use the club skill rather than the boomerang skill.

Applying a leash to a club creates an aklys.

Artifact club The Pool Cue: it has the same damage as a regular club but causes several tiles of knockback to anything it hits.

Tourists can get Basic skill in club due to having played baseball and being familiar with bats, and Skilled in riding because riding is a popular tourist attraction.

Cavemen wielding clubs get damage bonuses that increase with their skill in club, to make up for clubs’ awful damage.

Clubs may stun monsters that they hit. Perhaps the chance increases with skill, such as 0% unskilled, 10% basic, 20% skilled, 40% expert.