My Little Steampunk Dentist  
What is she doing I have no idea. Apparently heading somewhere on her, uh, toothpaste-powered toothpaste surfboard tube.
 
But. Colgate is one of my most favourite background ponies. I like to think of her as a jolly, energentic and a bit crazy pony.  
And screw blindbags, her name is NOT Minuette! (how is this even supposed to be pronounced?)
 
And I like her even more since I played “Minty fresh adventure” game. [link]  
If you didn’t play it yet do it. It’s awesome.  
(and you can even meet Doctor Whooves!)  
Other Steampunk Ponies:  
The Inventor - Twilight Sparkle >>3872  
The Timid - Fluttershy >>3855  
The Mechanic - Applejack >>75758  
The Pilot - Rainbow Dash >>2536  
The Random - Pinkie Pie >>2541  
The Lady - Rarity >>3687  
The Dentist - Colgate >>Here  
The Princesses - Celestia and Nightmare Moon >>3972  
The Flyers - Spitfire and Soarin’ >>4758  
The Smuggler - Carrot Top >>19100  
The Messenger - Derpy Hooves >>34431  
The Dreamer - Lyra >>46445  
The Professor - Cheerilee >>47442  
The Virtuoso - Octavia >>48717  
The Evil Queen - Chrysalis >>50247  
The DJ - Vinyl Scratch >>51412  
The Soldier - Big Macintosh >>57995  
The Illusionist - Trixie >>74358