Go to or Decals (depending on how the creator categorized it).

If you are looking to create a similar .var file yourself, you would need to use the tool within the game's desktop mode to bundle your custom textures and .json presets. Resources by VRDollz | Virt-A-Mate Hub

Based on Virt-A-Mate Hub listings , VRDollz typically creates —including Lip Liner, Lip Stick, Lip Gloss, and Lip Glitter—which are applied as clothing presets to make "instant cuties".