Ten New York Central/Penn Central/Conrail Racor 112 Switchstands - priced at $3.00US per switchstand. Each kit includes six different targets and three styles of switch lamp. Five of the stands have the handle thrown to the left side, five have the handle thrown to the right side. Shims are included to allow for easy mounting on commercial HO turnouts like Atlas or Peco.
They are also available in a:
-20 pack for $50.00US (priced at $2.50US per switchstand)
https://shpws.me/SJvw
Lamp lenses should be about 1.5MM diameter.
Hobby Lobby sells 1.6MM diameter. "ROUND RHINESTONE BORDER STICKERS" in correct colors - search their website for SKU #863241.
A model of the NYC 'Harp' switchstand used on the Big Four lines is also available:
https://shpws.me/SK6t
The Lake Shore & Michgan Southern version of the 'Harp' switchstand can be purchased here:
https://shpws.me/SKMm
Assembly instructions are available in the Tips and How-tos section of the Shapeways 3D Printing Forum:
https://www.shapeways.com/forum/t/new-york-central-racor-112-ho-switchstand-assembly-instructions.101565/
They are similar to the instructions for the CN Racor 31B HO Switchstand:
https://www.shapeways.com/forum/t/cn-switchstand-racor31b-r3-ho-assembly-instructions.101514/
and the CP Tall HO Switchstand assembly instructions:
https://www.shapeways.com/forum/t/canadian-pacific-ho-tall-switchstand-kit-instructions.101487/
A magnifying headset (Optivisor) and a precision sprue cutter like the Intermountain BB-1015, Micro-Mark #82393 or UMM-USA GMT01 are required to cut the parts from the support framework.
https://umm-usa.com/onlinestore/product_info.php?cPath=21_28&products_id=3749