Goblin Bombardment

Sacrifice a creature: Goblin Bombardment deals 1 damage to any target.

Liquimetal Torque

{T}: Add {C}.
{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

Jan Jansen, Chaos Crafter

Haste
{T}, Sacrifice an artifact creature: Create two Treasure tokens.
{T}, Sacrifice a noncreature artifact: Create two 1/1 colorless Construct artifact creature tokens.

Dross Scorpion

Whenever Dross Scorpion or another artifact creature dies, you may untap target artifact.

Liquimetal Coating

{T}: Target permanent becomes an artifact in addition to its other types until end of turn.