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Spider Legs (SlSl / Slsl): Step 5 Markings C; Black marking that creates four arachnid-type leg markings from the barrel of the horse down the legs. Never goes past the knees/hocks. (I like V2 better but I drew V1 first and decided I'd leave it as another example)
Venom (VmVm / Vmvm +/- Luciferin): Step 8 White Markings; venom is a white marking by itself that creates a fang like marking from just below the eye, over the nostril, and onto the lip. If Luciferin is present, will act as a modifier to venom to make it the luciferin color instead of white.
Murine (mimi / Mimi carries): Step 5 Markings C; turns the tail to a pink/peach color that mimics that of a rat or mouse tail.
Bat Wing Dun ( D_ + BwdBwd / Bwdbwd): Step 2 Dilutions; a dun modifier similar to Herrera Banding, requires Dun to express. Creates a batwing marking from the slope of the shoulder across the back/barrel of the horse in the color of the dun accents. Dominant to Herrera Banding, will express instead of Herrera if D_ Hb_ Bwd_).
Candy Blanket Appaloosa (Lplp + Candy): Step 8 White Markings; a blanket appaloosa modifier. Creates a candy swirl pattern in the blanket instead of spots. 25% chance to pass in breedings. Can be carried with other appaloosa types or if no appaloosa gene present.