Cheapest priced copy (Teenage Mutant Ninja Turtles): $0.35 at Card Kingdom, near mint, their price list as of .
Mouser Foundry 
Artifact · Common · Teenage Mutant Ninja Turtles · #96
When this artifact enters or leaves the battlefield, create a 1/1 colorless Robot artifact creature token.
{4}{R}, Sacrifice this artifact: It deals 3 damage to target creature.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Teenage Mutant Ninja Turtles | 96 | Common | $0.35 | $0.49 |