I just wanted to poiint out that the logo has three separate mascots. I’m sure there’s some obscure historical reason for each one, but it would be better to just have one. A dragon seems appropriate. The bunny and the TMNT extra throwing a trashcan, not so much. 
There are four five. You forgot the Utah teapot, and the Industry Forge Hammer.
And it’s not a turtle, it’s buff dillo! 
Oh, I get it, he is holding the hammer in his left hand.
The dragon looks completely different from the other characters. It doesn’t fit well together at all.
BuffaDillo That does sound like a nice kind of pet
Right. 
Well there has to be something for contrast. He’s kinda the whole background.
Bunny is shaded differently though for some reason; flat red as the text.
You got it wrong. When buff dillos with superior 4-finger hands take over, you are the pet.
I’m pondering who I’d rather be a pet of: buff dillo og the Utah teapot 
Hoping all 5 will come to the vulkanised event in UK
Sorry to raise this thread from the dead, I just got really curious about the significance of these mascots.
Please correct me if I am wrong, but for anyone wanting to read more I’ll use names you can google duckduckgo for more information.
The bunny is the Stanford Bunny
The dragon is the Stanford Dragon
The teapot is the Utha Teapot
These have historical significance in computer graphics, and there are wikipedia articles about these if you want to read
So sorry @JoshKlint, these characters are completely on point and fit together 
I can only presume that the hammer is Hephaestus’ Hammer, seeing as Vulcan is the Roman name for Hephaestus, and Vulkan is named after him. And Kronos/Saturn is Hephaestus/Vulcan’s grandfather, ofc Khronos group is named after him. And Hephaestus/Vulcan is often depicted with a hammer and or making weapons. I’d be surprised if this hammer is anything but a reference to this or meant to be this hammer. Why they mix and match Greek and Roman names, I can only imagine they are inspired by Disney’s Heracles, eh I mean Hercules 
But what about the anthropomorphized pig? I don’t get the reference? I don’t buy @krOoze explanation its an armadillo (without further evidence), as armadillos are most famous for their armor, something this character doesn’t have. To me it looks like a pig. I want it to be a reference to Asterius the bull of Minos / The Minotaur in the Labyrinth. As it would fit better with the Hephaestus/Vulcan Kronos/Saturn theme. But other than the Greek/Roman mythology theme, I don’t know any greater significant connection between Asterius and Hephaestus/Vulcan either. And importantly it doesn’t look like a Bull.
I’d love to learn more about this pig
Edit:
In other pictures of the mascot he has a dog like snout, and more sharp teeth. So is he a dog instead of a pig maybe?
And I have seen him use the hammer on an anvil, so that makes my beliefs about it being Hephaestus/Vulcan’s hammer stronger.
You were so close. It is Stanford Armadillo.
The hammer connection besides Vulcan is the subtitle of “Industry Forged”.
