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

Local Line Single Platform : Baioudou HO(1:83) Unpainted Kit AC-058-83U

Autumn Valley Module : Kazutaku Itoh Pre-painted 1:150 Scale

Guardrails and delineators: Preiser unpainted kit HO (1:87) 18202

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

The Cradle of Monorail : Shin Tachikawa Finished product Non-scale

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

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

Light Rail Sleeper Set HO2 (6.5mm gauge) Code 40 Only Value Pack 10pcs : Classic Story Unpainted Kit HO(1:87) PAR-0002-2

Railway Scales and Uncle (Trackside Scale) : Woodland Unpainted Kit HO(1:87) D231

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

Trailer House (2-storey) [with LED] : Woodland Finished product HO(1:87) BR5061

Epoch 4 era electric freight trailer (DB German Federal Railways): Preiser unpainted kit HO (1:87) 17120

Epoch 3 era electric freight trailer (DB German Federal Railways): Preiser unpainted kit HO(1:87) 17122

Trailer House [w/LED] : Woodland Finished product model HO (1:87) BR5060

Trailer House [w/LED] : Woodland Finished product N (1:160) BR4950

Railroad Maintenance Worker : Prizer - Finished product HO(1:87) 10602

Miniatuart mini Christmas ver. [Christmas Tree] : Sankei Kit Non-scale MP05-11

Trainman and Traveller : Preiser - Finished product HO (1:87) 10570

Miniature Suigyu for gardening diorama : Icom Pre-Painted Non-Scale GM24

Miniature fox for gardening diorama : Icom Pre-Painted Non-Scale GM17