I have created a world for this. You can download it here:
https://drive.google.com/file/d/1bDYmvsVjuAvTr5TKNUhjSzPzGmN...Download it, use the loom in front of you, use the lime banner, the orange dye, and the banner pattern, and boom, achievement unlocked (this may take some time to unlock, but it WILL unlock. Just keep yourself in the game until it does.)
This world was made on 11.0.5 so you'll need to be part of the windows minecraft insider to use this world. In the microsoft store on windows 10, you will be able to sign up for the insider version of minecraft. Five minutes or so after signing up, you'll be able to download the beta updates, and thus, use this world.