You can buy this pattern here: 
https://www.etsy.com/listing/1316618207/bunny-hat-bucket-hat-printable-pdf?ref=listings_manager_grid
 
Bucket hat with bunny ears. Animal hat. Printable sewing pattern.
With linen. Seam allowance is added.
Made for thick fabric.

The pattern is in PDF format. 
You will need to glue some details together. 
video for sewing this pattern:
 
https://youtu.be/nE-sXkpdnQA

Made for regular A4 format printer.
You will need:
130x100cm of fabric.
OR
40 x  52 inch.