All of my earring designs either have sterling or gold-filled earwires or posts, or if a copper color is wanted or needed, I use non-allergenic niobium earwires.
Masked Bandits Post Earrings Pink Flamingo Earrings (tinted) Kitty Kats Sterling Silver Egret Earrings Perfect Spring Aquarium with Opals What a catch! Southwest Anyone Silver Polka Dots The Phil A. Fish twins Silver Granny Squares