The Payload Assist Motor of the Delta rocket upper stage (PAM-D) is almost freaky in its durability. In 2011, another chunk of would-be space junk survived re-entry, crashing as a recognizable sphere instead of burning up in the atmosphere.
I say "another" PAM-D rocket casing, because I already told you about the casing that crashed into the Australian desert and wasn't noticed for nearly two decades. At least it's not still in orbit crowding up near-Earth space with junk.
In March 2011, Uruguay collected some exotic litter. The Delta 2 rocket had launched in 2003 carrying Navstar 53 into position, before re-entering over the Pacific Ocean years later.
A farmer even witnessed the re-entry event itself, describing it to a local paper as, "Andaba en el campo a las once de la noche y cuando me venía veo un tren de fuego, una estrella grande y detrás de ella cuatro o cinco más. Venía desde el departamento de Salto y eran cuatro o cinco esferas. La tercera explotó y la última se desintegró." According to translation algorithms works out to something like he was heading out into the field at eleven that night, and saw a stream of fireball. The fireball was a main star with four or five smaller pieces dragging behind it
, the third of which exploded. The third exploded, and the last one disintegrated. Shortly after, the ground shook and he heard a deafening bang. (Here's a better translation!)
The farmer and his father who found the casing originally hid it in their barn, afraid that if anyone found out they'd be forced to surrender it. After a bit too much gossip and friends posting photos, the secret was out.