My favorite dragon from HTTYD was the Zippleback. Of course!

I think it'd be pretty awesome to have two heads. With one 'mind' of course- that would be kinda annoying otherwise.

Think of all the fun things you could do!

PROS:
- harmony by yourself
- talking to yourself without a bluetooth thingy
- multitasking ftw
- no blind spots
- screw with people by putting on mixed expressions

But there would be drawbacks maybe:

CONS:
- 2x dentistry bills (my dentist LOVES me)
- constant head-bonking
- poor aerodynamics
- hard to find clothes? (nude time!)
- constant weird looks maybe

Toothless was pretty cute but he wasn't the only character in the movie ya know!