Fallout special encounters

Alien Ship
There is a UFO with two dead aliens beside it. One of them has an Alien Blaster and the other a fuzzy painting of Elvis. By looking at the UFO you discover a small label that reads: "Property of Area-51. Return if found."

Bob's Pre-owned Car Mart
Used cars for sale, lock pick the loony salesman's house to get the Red Ryder BB Gun from a locked box on the left, then check the right side of the house to find a box containing the most excellent Red Ryder LE BB Gun.

Brahmin Herd
"You come across a herd of wild Brahmin. you feel there is something wrong..." About 5 Brahmin are around and either say "Moo!" or "Moo, I say."

Dr. Who
You see the familiar police box that disappears as you go towards it. Leaves behind a Motion Sensor.

Giant Footprint
Giant footprint in the ground with the remains of a crushed peasant, search the remains to find a Stealth Boy.

Nuka-Cola Truck
Crashed and left alone in the middle of the desert, with a potentially huge amount of bottle caps scattered around, depending on your Luck. The amount is doubled with the Fortune Finder perk.