In Fallout 3, there was a upgraded power fist called "Fisto!" Fisto makes a return in Fallout: New Vegas as a sexbot that is involved in the quest "Wang Dang Automatic Tango." In the quest, you find Fisto in cerulean robotics. After releasing him from his tube, he gives you the option to test him out. After completing the side quest to find a sex robot for the silver rush, Fisto will go to the Silver Rush Casino. Inside, next to the roulette table, speak to him and he'll offer his services. If you reply "No thanks" it will give you ten caps. This can provide an infinite supply of caps if you're willing to activate the chat over and over again.