Ender dragon named "Dinnerbone" or "Grumm" is not upside-down
/summon minecraft:sheep ~ ~ ~ {CustomName:"{\"text\":\"Dinnerbone\"}",CustomNameVisible:1b,Silent:1b,NoAI:1b} It did work as the sheep was turned upside down. I don't know if this is intentional or not, but I hope it's not. ...