A little boy in Holland was sad when his beloved pet rat died.
But now he's happy because, with the help of two engineers he made the dead rodent into a rat-copter.
The 13-year-old thinks it's the best way to hold onto his pet.
He contacted the two engineers because he saw that they had done this sort of thing before.
They had previously stuffed a cat and an ostrich, and turned those into flying machines.