Yoshi’s Woolly World came out a couple of days ago in North America (on October 16th), and was accompanied by the same Yarn Yoshi amiibo figures as Europe and Japan. However, there was a major difference: only the Blue and Pink figures were sold separately, and the Green one was only available via the game + amiibo bundle.
If you’re not interested in Yoshi’s Woolly World itself (or simply bought the regular / digital version), and don’t want to buy used/import, good news! Nintend of America announced a few minutes ago that the green Yarn Yoshi would be released as a standalone amiibo on November 13th in North America. Of course, the price remains unchanged: $16.99!
Here’s a picture of the packaging of this standalone green Yarn Yoshi amiibo: