First, I'm sorry. I know this might not be the best way of suggesting this, but I don't know a better one either.

I love Mermod. I love how it just adds the necessary items to be used: I use realistic resource packs and I hate it when there are blocks/items with default textures. With Mermod, I just need to create a necklace that will remain hidden for the rest of my game.

And that is the reason why I'm begging you to do the same but with fairy* wings. It could be done in the same way as Mermod, with different types of wings: basic fairy wings, Winx wings, Barbie Fairytopia wings, etc. These are just examples.
*I'm looking for fairy wings, but it could add other types of wings as well if you'd like.

Of course, I completely understand if you don't want to or don't have the time for it. In the end, this is just a suggestion.

Anyways, if someone here knows about a similar mod, please tell me! I've tried Winged, but it adds mob drops and a lot of items in general.

[EDIT] I just remembered that, with Ears mod, I've created a lot of different wing skins that turned up pretty well. So maybe I could help with the designs if you want.

Sorry for the late reply. I like the idea (Winx and Barbie Fairytopia are iconic) but I don't have time or motivation to create any new mods for now. Thanks for the suggestion!