Vault-Tec lunchbox

The Vault-Tec lunchbox is a miscellaneous item in Fallout 4. When interacted with it spawns a random item and becomes collectable.

Characteristics
A Vault-Tec branded lunchbox with depictions of Vault-Tec propaganda and various versions of Vault Boy. The inside of the lunchbox has faint drawings of children's faces on the front and rear of the box. These drawings are difficult to see under normal circumstances, as the lunchbox is usually thrown around upon opening, and players often pick the item up immediately without inspecting it. Occasionally, a lunchbox will have a sticker decal, or the name of a child on the front. It is currently unknown whether the appearance of decals and names is randomized.

Each lunchbox contains a randomly selected item, ranging anywhere from junk items like a fork or plastic knife, to the rarer items such as ice cold Nuka Cola Quantum, a collectible model or in some cases a random explosive.

Locations
Upon opening one of the Vault-Tec lunchboxes, a random item is popped out and there's a small shower of confetti.
 * They can often be found in Pulowski Preservation shelters.
 * One may be found in an unlocked upstairs bedroom in the Concord Speakeasy, underneath the bed and between the wall and a fallen mattress on the floor.
 * One is held by a skeleton in the basement of Pickman Gallery.
 * One may be found in the house by the railroad tracks just northeast of Tenpines Bluff.
 * One may be found on a table in the Boston Public Library.
 * Seven may be found in East Boston Preparatory School.
 * One may be found on the lowest level of the Park Street station, on the right side of the room, on the floor, behind a cigarette machine.
 * One may be found just past the reception desk of Cambridge Polymer Labs, behind a dividing wall.
 * One may be found on the third floor of Mass Bay medical center, on a couch next to a baby stroller.
 * One sits on a dresser in the ruins of the basement of Trinity Church.
 * One sits on the table outside and to the right of the door to Fraternal Post 115.
 * One may be found on a cabinet in a small room at the top of the catwalk in the Four Leaf fishpacking plant.
 * One may be found on a shelving unit downstairs inside Rocky Cave, in the Glowing Sea.
 * One may be found in the Parking Garage in Lexington, inside of a car by the Protectron terminal.
 * One may be found in the cafeteria inside the Super-Duper Mart, on top of a shelf. Note that it's hard to notice while stealthed.
 * 3 inside the Vault-Tec Regional HQ (2 in the building itself and 1 if you take the elevator to the basement.
 * 1 inside the Master-Locked National Guard Armory in the National Guard training yard near the power armor frame.
 * 1 after the entrance into Mass Pike Tunnel West in a half destroyed bus,under a bench with teddy bears on top.
 * 1 inside the basement of the Museum of Witchcraft underneath a table.
 * 1 inside the ground floor of the Beantown Brewery. It's at the bottom of a support beam behind the 2 large vats. There's a teddy bear in a Trilby Hat next to it.
 * 1 inside South Boston High School in the lockers near the front door.
 * 3 inside D.B. Technical High School, 1 on a yellow table in the ruined area on the second floor, 1 on a table beside the bottom of the large concrete ramp leading up to the second floor, and 1 in the basement, in a shopping cart within the room to the left of where the floodlight is facing.
 * 1 inside Collegiate administration building underneath the stairs.
 * 1 inside a box in a Subway Train in Andrew station, another is across from it in a small room on a nightstand. A third is in another subway car further into the station. A fourth is at the opposite end of the tunnels under the Diner.
 * 1 on a shelf next to the Steamer Trunk in Virgil's laboratory.
 * 2 inside the Separated family radio signal house in West Everett Estates: one in the kitchen and another inside the backyard bunker.
 * 1 inside the Gift shop basement, next to the lockers in the room with Whiplash and Walter.
 * 2 in Concord Civic Access, behind some pipes in the sewer part and in the room across from the mirelurk.
 * 1 in the kitchen of the Nahant Oceanological Society.
 * 1 in the tractor unit near Back Street Apparel, next to the river.
 * 1 in the Holy Mission Congregation on the floor in the pews.
 * 1 inside the abandoned shack behind the power armor frame underneath a tool case
 * 3 or more inside Sentinel Site Prescott, in the lower tunnels.
 * 1 in a cell in an unmarked hideout located under a bridge northeast of coastal cottage
 * 1 on a picnic table to the left of the Jamaica Plain Town Hall.