Counting submersible sheep

Fish are a basic currency (shades of KaiVai).

VPs may be traded 2:1 for fish at any time.

When another player’s segment is used to make a delivery the moving player must give them one fish per segment of theirs that it used.

When a delivery uses the active player’s segment they receive a fish from the bank. This is the primary input source of fish to the economy.

The delivering player earns VPs for a delivery equal to the number of supplies of the delivery type present at the delivery location after the deliver (and before satisfaction).

After a delivery a player may create a kula ring trade item. Such items cost 3 fish and give the creating player 1 VP. Kula ring items are represented by 3 special tokens.

Upon making a delivery a player may give up to one kula ring trade item to each player who possesses a segment connected to the island delivered to. A player giving a kula ring trade item earns 1 VP.

When a kula ring trade item is given one of the three tokens forming the item are discarded.

A player possessing 2 kula ring trade items (possibly from different sources) may combine them into lots of 3 or more to make new kula ring trade items to give away. They earn 1 VP per kula ring trade item they give away.

A player may possess a kula ring trade item for up to two turns without loss. At the end of the second turn the player must discard 30% of all their kula ring trade tokens, rounded down.

Fish decay (more shades of KaiVai). Players must discard all fish they’ve had and not spent after two turns (enforce economy velocity). Fish received from other players via building bids start out “fresh” no matter how old they were when paid.

Two delivery opportunities per turn. Players must delivery on both turns or must increase Links or Explorers instead (limited by max). They must make deliveries even if it hurts their position. (Links and Explorers may also be increased without a passed delivery for a $fee of fish)

Odd notions of a third currency?