Sure. One super short fantasy story could be: In a magical forest, a tiny fairy lost her wand. She searched everywhere. Then, a kind squirrel found it and returned it. And with her wand back, she made the forest glow with colorful lights.
There is a short fantasy story like this. A young wizard was on a journey to find a magical crystal. He faced many challenges like enchanted beasts. But he finally found the crystal in an old cave, and when he touched it, he was filled with new powers. This simple story shows the typical adventure elements in a short form of fantasy.
A super short fantasy story is about a mermaid who dreamed of walking on land. One day, a magic spell made it possible for her to have legs for a short time. She explored the shore, met a human, and they shared a beautiful moment. When the spell ended, she swam back to the sea with a heart full of new memories.