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

064-00019 JNR Steam Locomotive Crew - Assistant Engineer holding Tablet Carrier : Tiny Tales - Pre-Colored 1:64

Plate girder bridge (code 80 rail included): Atlas kit N (1:160) 2548

080-00012 Choshi Electric Railway Station Employee 4 : Tiny Tales - Completed Colored HO (1:80)

Rail joiner for code 55 and code 80: Piiko (Pico) material SL-310

Track Gauge 16.5mm HO Code for No.55: Micro Engineering Railways Track 42-104

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

Wooden Single-track Locomotive Depot Wooden Paneling Kit : Chitetsu Corporation (Yoichi Miyashita) Unpainted Kit HO (1:80) 99970000001

064-00015 JNR steam locomotive crew - engineer inspecting : Tiny Tales - Pre-Colored 1:64

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

6 guardrails: Pikestaff kit HO (1:87) 13

Palm tree, approx. 3cm, 6 pieces : JTT Finished product, Non-scale 94235

080-00019 JNR Steam Locomotive Crew - Assistant Engineer holding Tablet Carrier : Tiny Tales - Pre-Colored 1:80

Rooftop Elevated Water Tank Set of 2 A : Miniature Kobo Kit N (1:150) PKNS1031A1

Sugisawa 2-line Locomotive Depot II : Baioudou HO(1:87) Pre-colored Kit ST-027-87C

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

Train Crew and Passengers on the Suspension Rail : Pre-Sealed N(1:160) 79141

American Railroad, Engineer, Conductor, etc. : Preiser - Finished product N (1:160) 79200

The Land of the Coal Mine - Summer : Miniatures Nature Materials Non-scale 735-22

American Railroad Official : Prizer - Finished product HO(1:87) 10535

Tunnel liner GM for double track (1 piece): Molin material N (1:150) TL-13