I currently know only of the following items. If you know of any others, please email me.
Larry Larson Graphics, D&C Shay dry transfers, white
Morgan Hill Models, block car wood kit
PSC brass Shay #4
Kemtron brass kit, Shay #4 as oil burner
Kemtron #900 brass kit 1907 rail auto for Sierra, or converted for West Side or Diamond & Caldor HOn3