No one is entirely sure why quigar skulls can look so varied. Perhaps it is a testament to their connection with the earth?

Your quigar’s skull face becomes something that is completely made up. As this is such a broad trait, this will have to be overlooked on a case by case basis. There are some guidelines however:

• You can include horns of your allowed rarities or make your own type, but they can’t imitate innate, divine, quest, or event traits unless you have a trait item of that rarity.
  • If a special trait is made that is similar to your character’s skull type, you will not be asked to change it retroactively. 
• You can invent your own skull shape and features.
• You can use skulls of mythical creatures such as unicorns, dragons, etc.
• Living modifier plus this skull can theoretically make a fleshy version of whatever creature's skull you have chosen.

ALLOWED:

• Fantastical, imaginary skull shapes that don't exist in reality
• Skulls of mythical creatures such as dragons
• Skulls for animals that don't even have bones!
• Odd anatomy and makeup (provided it still includes the quigar's eyes/third eye, as well as nostrils and a mouth.)
• Human skulls.

NOT ALLOWED:

• Real animal skulls
• Skulls of other merlotverse species.

If you're unsure if your idea is valid, feel free to ask.