Hey there! Today I'm going to tell you how to make upside down mobs in vanilla minecraft!

First get a mob egg/name tag and put it into an anvil.
Second name it either 'Grumm' or 'Dinnerbone'
Third spawn it in, Or use the nametag on a mob!
Mobs will now be upside down!
You can even ride horses and pigs whilst they are upside down too!

Have fun, And Don't forget to leave a Diamond if this helped you!