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

Telescopic Gate - A : Icom Pre-Painted Assembly Kit 1:144(1:150) EP-45

Towards the Pass : Toshifumi Suzuki (Teishin Kobo) Pre-painted 1:150

Paddy field Autumn rice field : Miniatures Nature Materials Non-scale 716-12

Micropac Small grasses - the height of summer : Miniatures Nature Materials Non-scale 717-22m

Single Track Truss Bridge : Walthers Unpainted Kit HO(1:87) 3185

11-109 Pocket Line Series Electric Locomotive Power Unit : KATO N (1:150) Power Unit

Micropac Sparrow Hide and Seek in the Frozen Land : Miniatures Nature Materials Non-scale 997-24m

Micro pack - Sparrow hide and seek - rainy season pattern : Miniatures Nature Materials - Non-scale 997-21m

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

Tea Field and Elevated Road (with pole between lines) : Yasuji Ibuchi Painted Completed N (1:150)

Micropac Roadside Flower - Violet : Miniatures Nature Materials Non-scale 767-24m

The Railway Man : Woodland Pre-painted HO (1:87) 1847

European Fence-E : Icom pre-painted assembly kit 1:144-N(1:150) EP-39

J.W. Shoe Store [with LED] : Woodland Finished product HO(1:87) 5032

Micropac Roadside Flowers - White : Miniatures Nature Materials Non-scale 767-21m

Double-track truss bridge : Norihisa Matsumoto Painted 1:150 size

Cable drum and transport rack: Preiser unpainted kit HO(1:87) 17117

Direct Sales : Icom Pre-Painted Assembly Kit 1:144(1:150) EP-10

Micro pack Purple flowers : Miniatures Nature Materials Non-scale 998-24m

Double track truss bridge: Walthers unpainted kit N (1:160) 3242