A little prince or princess I know is in need of a crown. Here, a photo shoots for a red crown.
They're quick and easy to make and can be made to fit any noggin size, even an adult.
Just change the color of yarn for a girl's princess or prince boy crown.
The crown look enough like a real crown to fit a real royal, but yet be sturdy enough to withstand play and wear.
I started with a cotton blend yarn and added gold sparkle with a metallic crochet thread.
In case you want to make your own baby royal crown, take a look my pattern here
Optional: Place the crown over a suitable size cylinder or cone.
Stiffen with starch, or sugar solution. Allow to dry in place.
Related with princess crown, crown prince, prince crown, baby crown.