Your search for "YSK" revealed the following:

Penguin Material A (Standing) : YSK Unpainted Kit 1:100 Scale Part No. 401

Cardboard box (loose) : YSK Unpainted kit N (1:150) Part No. 471

Park Play Equipment 3 (Animal) : YSK Unpainted Kit N (1:150) Part No. 323

Wooden pallet (large) brown : YSK Unpainted kit N (1:150) Part No.462

Wooden Lantern (Red): YSK Unpainted Kit N (1:150) Item No. 480

System Caddy : YSK Unpainted Kit N (1:150) Part No. 227

Combine: YSK Unpainted Kit N (1:150) Part No. 285

Air Conditioner Outdoor Unit : YSK Unpainted Kit N (1:150) Part No. 220

Stone pedestal, set of 8 pieces of 4 kinds : YSK Unpainted kit N(1:150) Part No.476

Open-air Bath 2: YSK Unpainted Kit N (1:150) Part No. 383

Petrol Meter : YSK Unpainted Kit N (1:150) Part No. 211

Kotetsu Bridge (Green) : YSK Unpainted Kit N (1:150) Part No. 276

Freescale Memorable scenes series RPG style "Barrel" 16 pieces + split barrels set : YSK Unpainted kit Non-scale Part No. 429

Penguin Material F (small size 1) : YSK Unpainted kit HO (1:87) Part No. 406

Showa Station Set : YSK Unpainted Kit N (1:150) Part No. 379

Fire Hydrant: YSK Unpainted Kit N (1:150) Part No. 231

Pier: YSK Unpainted Kit N (1:150) Part 226

Grand Piano : YSK Unpainted Kit N (1:150) Part No. 399

Pizza Bike (set of 2): YSK Unpainted Kit N (1:150) Part No. 284

Penguin Material C (Children) : YSK Unpainted Kit 1:100 Scale Part No. 403