Your search for "Rail for mini mini train" revealed the following:

Level Crossing Board Set (Small) : ECHO Model Unpainted Kit HO (1:80) 170

Railway Staff : Prizer - Pre-Painted HO (1:87) 10375

BELGIUM RAILWAY OFFICER : Preiser - Painted HO(1:87) 10244

1 guardrail: Pikestaff kit HO (1:87) 3

Handrail knobs, height 1.5mm, for 0.4mm lines, pack of 6 : Sakatsuo detailing, non-scale 5003

Wooden Handrail Porch Rail : Grantline Unpainted Kit (Parts) HO(1:87) 5034

Market carriage, awning: Prizer kit HO(1:87) 17500

Vegetable Garden Green : Mini Nature Materials Non-scale 766-22

Railway maintenance worker carrying sleepers: Preiser, complete painted N (1:160) 79034

Coal scrap dumping site (included in the train) : Yoshiaki Nishimura, On30 layout section art work 1:48scale

Glowing grass - in the height of summer : Miniatures Nature Materials Non-scale 737-22

Shirakaba : Itsuro Saito - Painted N (1:150)

Tunnel Portal (for single line): AIM Kit N (1:160) 210

Sprouting in the wheat field : Miniatures Nature Materials Non-scale 765-23

Railing :Grant Line Unpainted Kit N(1:160) 8033

Railroad Crossing Board Set (Large) : ECHO Model Unpainted Kit HO (1:80) 169

Micropac Small grasses - Autumn : Miniatures Nature Materials Non-scale 717-23m

Micropac Glowing Grass - Springtime : Miniatures Nature Materials Non-scale 737-21m

Forest Railway - fresh green and mossy fallen trees : Art Stage K Painted 1:87 scale HO Narrow

Guardrail Fence: Noch unpainted kit N(1:160) 34111