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

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

Keihan Railway Line Diorama C : Yoshiaki Ishikawa Diorama work N (1:150)

Small Portal Crane : Faller Unpainted Kit N (1:160) 222200

080-00013 Choshi Electric Railway Station Employee 5 : Tiny Tales - Completed Colored HO (1:80)

Track Gauge 9mm N Code for No. 55: Micro Engineering Railways Track 42-109

064-00012 Choshi Electric Railway Station Employee 4 : Tiny Tales - Colored 1:64

11-110 Pocket Line Series Passenger Car Power Unit : KATO N(1:150) Power Unit

Chocks (for #70 rail) 10pcs : ECHO MODEL Unpainted kit HO(1:80) 163

Tunnel liner GM for electrification (2 pieces): Molin material N (1:150) TL-12

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

Forest Railway Spring Log Bridge: Art Stage K - Diorama Art Work 1:87 Scale

Set of 18 ferns: Noch Paper Kit N (1:160) 14606

Tunnel Portal Brick Double Track Brown 2pcs : Popopro Pre Painted N (1:150) MS-002

Railway Engineer : Woodland Pre-painted N (1:160) 2153

Signboard with LED Bowling & Bar JP5796 : Woodland Finished product HO (1:87) Just Plug compatible

Street Lamp with LED, Iron Pillar Double Lamp, HO Size, Set of 3 JP5632 : Woodland, Pre-painted, Complete HO(1:87) Just Plug compatible

The land of the coal mine - early autumn : Miniatures Nature Materials Non-scale 735-23

064-00009 Choshi Electric Railway Station Employee 1 : Tiny Tales - Colored 1:64

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

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