I need ideals for graduate hat any ideas

What is a graduate hat?

I would have it framed in a shadow box frame with graduation announcement, photo, diploma, program, school flag, school pin, school patch...any memento of the occasion.... most specialty framing shops (like Michael's) have materials to help you make it special... and framing services are usually on sale this time of year.

find a plastic pot that fits then put a square on top paint black and add a tassel or make it with cardboard

Here are buckets of great ideas for mortarboards, Andrea:

https://www.pinterest.com/diplomaframe/graduation-cap-decorations/?lp=true

You mean after you take off the tape that spells out "HIRE ME"? Congratulations! Love Marty's idea about the shadowbox.