 Item number SCP-387 Object Class Safe Special Containment Procedures Due to the nature of this object and the almost non-existent harm it poses, it is stationed in a storage container in Site-19 with a standard lock. The red tub in which SCP-387 is contained does not possess any unusual properties itself, as has been determined through testing, but SCP-387 will not duplicate itself unless at least a layer of it covers the bottom of the aforementioned container. A sheet is available for those wishing to utilize SCP-387, and access will be revoked if it is not properly restored. Description SCP-387 is a tub of commercially available Lego, normal in design. Irregular shapes not featured in normal sets, such as circular wheels and prisms, are also available. It has no brand name, and every company interviewed by undercover agents thus far has denied ever making irregular Lego. When the tub is not full, i.e. when it is partially or almost fully emptied, the Lego will slowly duplicate themselves, stopping when the container is full. The interesting property of SCP-387 is that, when constructed by a human hand, see Addendum 387D, the constructions will animate themselves, performing activities based on their surroundings. For example, if a Lego man, which is a man constructed using the provided humanoid parts, is placed within a car, it will begin to drive it. Further experimentation has revealed that the car, and indeed any complex machine, needs no internal engine or power source. The Lego people have some form of sentience, as they interact with each other quite readily. If left over time, the constructed people in buildings will evolve. They will take on occupations based on the buildings around them. For example, some people will become firemen and use fire trucks if the corresponding objects are there. They will also use SCP-387 to construct more things to expand their society. Humans can interact with them quite peacefully, but if a human becomes hostile to them, they will immediately cease all activity and become inanimate. SCP-387 was found in February of 2001 by Agent H. During a long train ride back to the city he lived in, Agent H idly constructed a man from SCP-387, which was in the seat beside him at the time. Several seconds later, it became animated. Agent H quickly disassembled the man and delivered the item to Site-19 for analysis, where it now remains. The security tapes from the train were confiscated and destroyed before they could be reviewed. Optional information SCP-387 should not be given to children under the age of 10, especially if the aforementioned children are influenced by cartoons and television shows. Experiment 387A A small community of SCP-387 is formed in a testing chamber. A plane constructed from normal Lego was placed to the side of the community. Over the next three hours, the following changes were observed. Several Lego men procured some equipment from SCP-387 heading over towards the plane. With incredible efficiency, the Lego men constructed what was, for all intents and purposes, a working airport. The specific pieces having been supplied by SCP-387 without visible signal. A petrol tank zoomed over to said plane, apparently filled it with fuel. Despite earlier observations that vehicles constructed from SCP-387 do not require fuel, and the plane proceeded to literally take off, flying around the room at low speeds and altitude, seemingly to avoid crashing. More planes of different make and design were formed soon after. Addendum 3871 Judging by this, I'd say that constructions of SCP-387 have some form of understanding of the surrounding environment, and they are able to convert existing Lego to 387. Dr. Arch Experiment 387b Several young children were given SCP-387 and were given instructions to use their imagination. The children, who had their memories of this experiment removed, began constructing various objects. After having noticed that they were animate, they excitedly conferred, and began building several objects that they intended to use in battling each other. These included a transformer, an M1 Abrams tank, and several expunged. The children were instantly removed, at which point, the creations began to fire, and eventually destroyed each other, though not after considerable effort. Addendum 3872 How the f*** did these children gain knowledge of the workings of an M1 Abrams tank? No less expunged. I'm not responsible for cleaning out the mess those things make. If anyone is stupid enough to let children go at SCP-387, I am not recommending an upgrade to Euclid, as the constructions did not fire whilst in the presence of humans. This has been tested with adults, and proved just as correct. Dr. Arch Experiment 387C The red tub that contains SCP-387 is emptied of Lego. Commercially available Lego is then placed in the tub for a minute. Constructed objects are inanimate, and remain so. SCP-387 replaced. It is noted that the Lego placed within the tub also did not duplicate itself. Experiment 387C2 A single block of SCP-387 is placed within the red tub. It does not replicate. More of SCP-387 is added until the bottom layer is covered, at which point, it began to replicate itself quite rapidly, until it had been filled. The amount of SCP-387 removed from the tub continued to work. Similarly, when an amount of SCP-387 higher than the tub's capacity was placed upon the tub, it shrank until the red tub was fully filled. Addendum 3873 It appears that the red tub itself has no abilities by itself, but SCP-387 will not duplicate itself unless in that particular tub. Perhaps this is a copyright mechanism that stops copies of 387 being made. Further experimentation needed. Dr. Arch Experiment 387D A robotic arm was used to construct a car out of 387. It did not animate. This test was repeated with a human hand, at which point the car animated as usual. A dead hand from a recently dismembered agent was used to no response. The hand was then heated, which still provoked no response. Addendum 3874 It appears that 387 responds to a pulse or some other detection of human life. Dr. Arch Addendum 3875 This SCP has been in high demand for extended use, as further testing has revealed no more anomalies or features. In the personnel tested, SCP-387 has improved morale and attitude by 87%. People are really kids at heart here. As such, I'm recommending that all personnel be given free access for recreational use. Dr. Arch Request approved Experiment 387E Once a normal community of 387 was constructed, a small mound of megablocks, a common copy of LEGO, was placed near the community. When this happened, everything constructed of 387 stopped moving, turned slowly towards the megablocks, and expunged. Addendum 3876 Jesus F***ing Christ, Dr. Arch Lesson Complete If you missed the previous orientation, go watch SCP-386, Eternal Fungus, right now, or for the complete course.