The giant house centipedes: scutigeromorphs at maximum scale, enormous legspans, cathedral gaits, and speed that makes Scolopendra look deliberate.
Delicate-bodied and mildly venomous, which inverts the centipede risk profile: the animal is more fragile than the keeper and faster than both. Tall humid housing, crevices, and an opening protocol are the keeping. The gait is the product, genuinely unlike anything else on legs.
Asian pulses carry a thin novelty trade at modest depth, wild-caught and unaged, and the containment job is the whole ownership experience. A specialist's spectacle, priced by scarcity of imports rather than of wonder.