Weird question but awhile back I saw a user with an OC picture. I thought the design was cool and I wanted to see if I could find it again. It was an Earth pony stallion with a cutie mark of a potion pulling a cart at night. If anyone has seen it on Fim Fiction or Deviantart I'd very much appreciate it if you could point me in the direction.

7499348
Hmm, that's quite specific. Looking through Derpibooru and related sites might help you if you play with the tags a bit.

You mean that flash game where you put treats and letters on said cart?

I'm not sure that still exists dear, but I'll look for it.

This one right?

https://www.deviantart.com/wolfkodi/art/Runaway-Pony-MLP-FiM-Based-253878078

Game was once here, Artist is here too.

7499348
Think I found it.

7499487
That's it. Thank you so much.