I've just noticed how similar Ap'lek's mask is to the Sith Warrior Adraas one from SWTOR. Probably a coincidence, but it would be cool if Ap'lek repaired and wore an old artifact. :
My BEST Custom Sith Costume with Pureblood Sith Mask 01 | Flickr
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Completed Sith Acolyte Costume Gallery | MYNOCK'S DEN | Taras Harkavyi | Sith, Star wars costumes, Star wars sith empire
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sith helmet for star wars cosplay : r/cosplayprops
STL file Sith Acolyte Star Wars mask printable 3D print model・3D print design to download・Cults