NCR dogtag

Dog Tags are a miscellaneous item in Fallout: New Vegas. They can be found on the corpses of fallen NCR soldiers much like Holotags could be found on the Brotherhood of Steel in Fallout 3.

An easy place to find these without losing reputation would be on the dead NCR soldiers in the Camp Guardian caves or by pickpocketing any NCR soldiers. Likewise those with the Mister Sandman perk can kill the troopers in their cots.

Uses
You can get a recipe for a weapon called the Dog Tag Fist from Private Halford after rescuing him (or looting his body) during an unmarked quest at a cave in Guardian Peak. The Dog Tag Fist requires 20 NCR Dog Tags and 30 Repair to create.

Quartermaster Mayes at Camp Forlorn Hope will accept NCR dog tags. His tent can be found to the right of the Command Tent, he will reward you with 2 caps and NCR reputation per tag.

Speaking with Aurelius of Phoenix at Cottonwood Cove gives you the opportunity to turn in dog tags for a reward of 10 caps each or ammo and supplies when you have barter of 35 and Caesar's Legion reputation.

Characteristics

 * Appear as run-of-the-mill dogtags