Your silliest idea for an OC

Math Transit, a unicorn who is able to do anything through the power of transitive property and magic.
 
Ex: “I’m a stallion, and stallions are supposed to procreate with mares. Therefore, I must procreate with a mare.” Applying a spell to this, all the mares in the near vicinity flock to him.

Tyme Frame, an earthpony who lives in a slightly longer time frame than everyone else, so it appears that he moves in slow motion all the time.
 
Ex. Tyme Frame opened his mouth to speak, but by the time he finished his first syllable, an hour had passed and everypony else had moved on.

Early Bloomer and Late Bloomer, two sister ponies. While Late is the older of the two, she is smaller and is stuck in what seems to be an awkward “middle school” phase. Early Bloomer, when she was ten, started blossoming into a beautiful mare earlier then everypony else.

The ultimate silly idea for an OC is drawing it.

Poopy McScooperton.
 
He er…tends to the cows and other farm animals. Also he hates his life.

Flash Sentry.

Sanderson.  
A large Pegasus that flies incredibly slow for a thing that flies, but has endurance that allows him to traverse harsh landscapes with minimal trouble. Such as, through a sandstorm.

Tough Cookie, a really muscular earth pony baker that makes the most delicious treats. He’s been the best cookie baker of Equestria since he was a colt, but because of that he suffered from foalhood obesity, which made him self-conscious about his body and lead to steroid abuse.

Quale Trove, a unicorn with the ability to perfectly remember her experiences, and a passion for trying new things. Also is able to magically share her memories with others.

Carpet Bagger, a rotund Earth pony with a thick Boston accent (think Dorchester or the South Shore) who travels to areas of great strife and tries to get in on fixer-upper economic venues. His cutie mark, derived from his talent for sniffing out such lucrative options, is indeed a carpet bag. :3
 
And I’m FROM the North so I can totally get away with this. XD

Memento Mori, Ponyville’s local undertaker who runs his business as if he were a combination of Gomez Addams and an overenthusiastic door-to-door salesman.  
Also had an idea for an affectionate parody of the hard-boiled noir private eye sort.

@Solitude
 
Dude.
 
That’s genius.

@QueenCold
 
Dudette.
 
Really? Thank you.

Lime Pun. A mare with a lemon for a cutie mark who’s talent might or might not involve burning stuff down with lemons.
 
Her name is a pun of “Lame Pun”

A pink alicorn with a profound-sounding name in another language, who’s niece of Princess Celestia, ruler of her very own kingdom, married to Twilight Sparkle’s brother, and beloved of anyone who meets her.

@Background Pony
 
Now that is silly!

A vampire unicorn called Grissly Bane.

@QueenCold  
…I like Cadance and think she’s an interesting character…

@Itsthinking  
I like her as well

@Itsthinking  
Just because she is pink and princess didn’t mean she was helpless. If anything, she was the one who had to save her Knightly Prince. And she is proven to possess pretty powerful magic. She is better at the shield spell than her husband(who is suppose to specialize on that field) is.

A Chrysalis changeling who considers itself a male, but prefers female disguises.  
His favorite is a purplish-black earth mare with blond mane who specializes in poisonous, carnivorous, and downright violent plant life.  
Cutie mark is a mushroom.  
Real name is Beezle.  
Pony name is “Blusher.”  
Has a parasprite named Taban for a pet.

Kamen Poni Rider Alicorn.  
But I made him too much like Decade that I scraped the idea and used Decade instead.