One of my players is a Summoner who is using picture #3 as his dragon eidolon. Little guy is like if a bulldog was also a portal to the Astral plane obsessed with collecting junk. His breath weapon is splinters.

We call this one bitey!

Thats just squiggs from warhammer

The third one's art was used in a campaign I played once. We called it the derpasaur.

Pug energy

I love them.

Kinda like the Alit and Kagouti from the Elder Scrolls series, basically just a mouth with legs.

I'm going to need 3e stats for those.

Nevermore? Bet nobody's ever thought of that one before. Just go outside and play with you dragon-head-dog.

I have dubed this a "Tea Cup Dragon" much like the Tea Cup Pigs in a way. I am gonna find a way to introduce one of these to my campaign / party somehow!