Gold

Sacrifice this artifact: Add one mana of any color.

Murders at Karlov Manor Commander Tokens

March of the Machine Commander Tokens

Commander Legends: Battle for Baldur's Gate Tokens

Theros Beyond Death Tokens

Commander 2017 Tokens

Jingling coins beckon many an eager hand.

Curse of Opulence

Enchant player
Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this artifact: Add one mana of any color.")

The First Iroan Games

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Create a 1/1 white Human Soldier creature token.
II — Put three +1/+1 counters on target creature you control.
III — If you control a creature with power 4 or greater, draw two cards.
IV — Create a Gold token.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Create a 1/1 white Human Soldier creature token.
II — Put three +1/+1 counters on target creature you control.
III — If you control a creature with power 4 or greater, draw two cards.
IV — Create a Gold token. (It's an artifact with "Sacrifice this artifact: Add one mana of any color.")

Merchants of the Underworld trade in coins of clay. Gold serves another purpose.

Gild

Exile target creature. Put a colorless artifact token named Gold onto the battlefield. It has "Sacrifice this artifact: Add one mana of any color to your mana pool."

Exile target creature. Create a Gold token. (It's an artifact with "Sacrifice this artifact: Add one mana of any color.")

King Macar, the Gold-Cursed

Inspired — Whenever King Macar, the Gold-Cursed becomes untapped, you may exile target creature. If you do, put a colorless artifact token named Gold onto the battlefield. It has "Sacrifice this artifact: Add one mana of any color to your mana pool."

Inspired — Whenever King Macar, the Gold-Cursed becomes untapped, you may exile target creature. If you do, create a Gold token. (It's an artifact with "Sacrifice this artifact: Add one mana of any color.")