 Item number SCP-4546 Object Class Safe Special Containment Procedures SCP-4546 instances are to be contained in a standard safe class locker. Provisional area 4546 has been constructed around SCP-4546-1. Just as civilians is to be denied under the guise of a firework manufacturing facility. Additional test launches of SCP-4546 are suspended indefinitely. With the exception of researcher Cardinus, no personnel within 200 meters of SCP-4546-1 are to comment aloud about the anomaly. Description SCP-4546 is the group designation for a box of individual aerial shell fireworks. SCP-4546 instances constantly emit a quiet crackling sound with no discernible pattern. Approximately 67% of people within audible range of these sounds will report hearing indistinct laughter described as childlike within the noise. SCP-4546 instances also iridesce brightly when people approach within 3.5 meters of them. SCP-4546 instances are each 0.8 meters in length and are decorated with red, white, and blue in the pattern of the United States flag and bear a label reading Forever Free. SCP-4546 are composed entirely of non-anomalous chemicals typical of commercial fireworks. Addendum 4546-01 On 1 February 1966, a test firing of SCP-4546 was approved in a remote location. One instance designated SCP-4546-1 was selected at random, loaded into a mortar, and launched. The selected instance crackled louder and iridesced more intensely prior to being launched. SCP-4546-1 ascended to a height of 119 meters and detonated, producing a burst of red, white, and blue stars with significantly less smoke than non-anomalous fireworks. SCP-4546-1 remains stationary at its peak height. Twenty seconds after the stars faded completely, SCP-4546-1 began to detonate continuously, forming changing shapes and patterns of stars in all colors. As of this writing, SCP-4546-1 has not ceased. SCP-4546-1's bursts and colors possess few consistent patterns. SCP-4546-1 produces larger and brighter detonations on certain holidays, namely July 4th, Memorial Day, and Veterans Day. On July 4th, 1976, the bicentennial of the United States of America, SCP-4546-1 produced bursts nearly five times their usual size, and created shapes strongly resembling a smiling face. Addendum 4546-02 On January 22nd, 2017, Researcher Cardinus was assigned to collect routine spectrographic data directly from SCP-4546-1. During the task, Researcher Cardinus oddly commented positively about the beauty of the display, causing SCP-4546-1's bursts to change colors to red and display heart shapes in addition to the usual rings and spheres. These altered bursts reappear only when Researcher Cardinus is in SCP-4546-1's vicinity.