We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for '0 scale'.

Other On30 Scale train items recently purchased through this site:

Western Scale Models L 3 Ames Twin Cylinder Steam Engine SEALED Kit O On3 0n30
0n30 Scale Bachmann Spectrum United Traction closed streetcar trolley train
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
On30 Scale Bachmann Spectrum 2 6 0 STEAM ENGINE 25229 OHIO RIVER WESTERN 16
NEW Hawthorne Village ON30 Scale 2 6 0 Loco Tender Christmas Express Bundle