Off the absolute top of my head there's the redcap. Depending on the material it can be depicted as a gnome, goblin, or kobold with a jaunty looking red hat (generally long and pointy like a gnome hat or like Link's hat in Legend of Zelda).
It keeps the hat red by dying and regularly re-dying it with its victims' blood.
There's also a number of depictions of pixies as essentially flying piranha.
But this sort of mythology isn't some deep secret, it's everywhere outside of the kid friendly/disney filtered stuff. I'm sure a simple search will net you tons of content.
Shoot, I was just referencing the modern interpretations of fae, but that’s absolutely fascinating! As recompense for unintentionally misleading you, here are a few of my favorite fairy artworks by Arthur Rackham
That brings me back memories of when is was ~5 years old and visiting my father's cabin in the forest, which had a copy of that painting on the wall. He would put hall of the mountain king on full blast and tell troll stories just to scare me from time to time.
Nøkken was scarier though, kept me from going down to lake alone after dark, which I guess was the original intention of that creature.
When all you can see outside the window is the pitch black forest and the moon over the looming mountains in the valley, and your dad start telling you tales of dangerous troll lurking in the forest, The Hall of Mountain King got a different mood over it. Especially when your father is telling you that as the music is reaching its prestissimo finale the troll in the tale is running towards your house lol.
Well, I'm waiting cause "They're ugly and kill people" won't be enough. You started it, you finished. What are they named? Where are there living? How could you meet them? And how would they kill you?
America's got some goofy cryptids too. Like the hugag. A large, moose-like fearsome critter with a big floppy upper lip and no elbows or knees. Unable to lay down or kneel, it can only eat bark from trees around the height of its head, and it can't lay down to sleep so it leans against trees, sometimes causing the tree to lean.
M14 with what looks like a 10 round mag using a cheap 10x60 optic? You are most likely a Californian or Canadian using an ineffective firearm against cryptids.
Real Americans use a drum fed semi-auto shotgun loaded P++ .50 caliber deer slugs or a 30-06 cal AR-10 with 25 round mag using a magnified Trijicon optic.
The Boto-cor-de-rosa, or river dolphin, is a real animal
But the cryptid of the same name is a river dolphin that is actually a shapeshifting trickster, who will turn himself into an attractive man (often depicted wearing a fancy hat to cover the blowhole atop his head) and seduce and bang women.
I love this movie. It's probably one of my favorite schlock fantasy movies. The casting was way better than it had any right to be - Hugh Jackman, sure, but Kate Beckinsale? Well, I guess she was fresh off Underworld, so she was still in that headspace. And Richard Roxburgh doing the perfect amount of scene-chewing for the villain.. introducing himself properly as Vladislaus Draculea.. and the opening scene, shot just like a 1920s Universal monster movie! I legitimately think it's the closest we'll ever get to a live action Castlevania. I could go on, but I'll spare you. Might be time for a rewatch.
The sets, the wardrobe, the direction, the acting. All of it is so good without taking itself too seriously. It's from the same director of the (good) Mummy movies, so go figure
That's definitely a bad idea to invite them to tea:
They know you saw them
They've got permission to enter you house
You are giving them food!!
It sound like a recipe to get your daughter stolen from you, or to have your house falling down on your head, or losing your mind or straight being skinned you and your family.
Carefully go back so they don't know you saw them.
Do not ever speak to this to anyone, not to your parent, your neighbour, your child not to your SO, not on the internet or your diary and lets hope you don't speak in your dream.
If any cryptid out there actually exists, my bet is on bigfoot just because it would be the most mundane, boring thing to be proven real. Just a big ape? Fuck that. I want the Dover Demon to be real because it's actually interesting.