Fawn/Deer ears DIY help

[Wonderllost]

I decided I was going to be a deer sorta anthro (my fursona) .. I then found some pictures for inspiration and I found this




I found these ears to be perfect, and they looks very close to my fursona (his ears are on the side, not upright like a realistic deer)
So as a part of my costume, I was wondering if anyone knows how to make this in detail (tips and tricks help too!)
I think they probably used faux fur, or even brushed out and straightened yarn with some wiring (and of course a headband)


If you know anything, thank you in advance! It would be much help