Your search for "styrene" revealed the following:

Z channel 4.0 x 3.7 x 350 mm : Evergreen Plastic material, non-scale 752

Rock moulds Classic : Woodland material Non-scale C1236

Fibre-based material Glass selection Green : Molin material Non-scale GR-02

Sponge dark green coarse : Bush material non scale 7319

Stone material R-stone river stone for ravines large grey : Morin material non-scale 545

Stone Material R Stone Coal 1:87 : Moline Material HO (1:87) CL-03

CASTING PLASTER Large: Woodland material, Non-scale C1201

Peeled type (pasture) winter, height 4.5mm : Martin Uhlberg Non-scale WB-P247

Natural Material [Ryken] Autumn Mix : Woodland Material Non-scale L165

Stone Wall Stairs : YSK Unpainted Kit N (1:150) Part No. 277

Peeled type (weed, moss green) Height 6mm : Martin Uhlberg Non-scale WB-SWM

Semi-circle 2.0 x 4.0 x 250 mm: Plastruct plastic material, non-scale 90885

Room with stairs Living room A: Cobani unpainted kit 1:24 ss-021

Diner A : Baioudou HO(1:87) Pre-colored Kit ST-022-87C

Round pipe 3.2mm outer diameter, 1.8mm inner diameter, 350mm length : Evergreen plastic material, non-scale 224

Stone material R-stone ballast 1:80 (1.2-1.6 mm) Semi-trunk line Dark grey: Moline material HO(1:80) 453

Curved embankment parts - inclined part (2 pieces): Moline material TM-12

Spiral staircase: Plastruct unpainted kit 1:200 STAS-202

Peeled Type (Weed Medium Green) Height 6mm : Martin Uhlberg Non-Scale WB-SWMG

Street Corner Shop-15 : Sankei Pre-colored Kit HO(1:80) MK05-62