Only two, bc the characters are long.

Explanation [(FYI, see the pony types):](https://www.deviantart.com/melisareb/journal/Alphabet-Lore-Letters-As-Pony-Types-My-Version-946875810)
S — Sadly, there are no "snake ponies" in MLP universe. But, there's a mythological creature named Inkanyamba, which it resembles a snake with an equine head.
T — The only character that swims in Z's body. Of course, he would be the sea pony. His cutie mark is a hammerhead shark. I tried my best to vector a stallion sea pony.

I traced them in screencaps, can't credit bases because it's very negligible.

Alphabet Lore belongs to Mike Salcedo

Made with Inkscape.
The SVG files are in a ZIP folder, Separated versions, & Cutie Marks: www.patreon.com/posts/81061731
Pixiv: https://www.pixiv.net/en/artworks/106884200