Didn't find an existing resource for this kind of piercing.
Sam's hair by @tickles:
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Hello, this is my first contribution for resources.
I liked the haircut imported by bambo15 Vem [WoW] but I wanted to change it.
I found the original, from the artist CaptainJerkpants that we find here : Hentai Foundry
I made a new clipping, thicker :
With some variations :