A plushie modification can be different depending on the type of modification it is.

Only request I have is if you use it in a pattern of your own make sure this part I designed receives credit for this original part of the pattern.

Mine was made with the original idea for ears to be added to a spider-man plushie I tested for @kiaunalrudolph (I got permission ahead of time from the designer of the original plush to post the pattern for the modification).

I figured it could also be used for whatever someone else decides the shape is a good option for, like leaf hats, fins, shoulder armor, and other similar thing due to the nature of the patterns shape, let your imagination go wild.