To make this biscornu use any square crocheted block.

Biscornu — a are small pillows, made from squares by offsetting the corners of the squares, whip-stitching them together, and stuffing them, so that they form a kind of puffy, eight-pointed pillow.

In the middle of the resulting pillow, a button or trinket is usually sewn, pulling the two sides of the pillow together.
Crochet with fun!

Step-by-step Photo Tutorial.

Русская версия: https://ellej.org/biskornyu/