Huolongchushui

The Huolongchushui had a hollow bamboo tube with a carved wooden dragon head and tail about five feet long.

[1] The front and rear contained four rockets packed with gunpowder that propelled the dragon forwards.

[2] The Huolongchushui is depicted in the 14th century Chinese military treatise Huolongjing by Jiao Yu and Liu Bowen during the early Ming dynasty.

[3][2] Huolongchushui were the primary inspiration for the man-portable artillery depicted in Disney's Mulan films.

They are also alluded to for the same reason by Jin Cheng (portrayed by Jess Hong) in episode 6 of the 2024 Netflix adaptation of the series.