Here's a covered hopper that a hobby shop owner gave to me. It's a Tyco, and if I recall correctly, it was lettered for "Old Dutch Cleanser". It had been sitting in the window of the shop and had become badly distorted from the heat of the sun. It is, or was, an ACF Centerflow, similar to trainsteve2453's model. I thought that the hatch covers might be useful for something, but when I later bought a Bachmann Santa Fe Northern via mail order, and saw how long that tender really was, I new use came to mind. I cut a good size piece out of the tender's length, then opened up the oil bunker and also removed some material from the lower sides of the tender body. Then, using part of the undistorted roof of the hopper, I fashioned a new bottom for the tender, converting it into a centipede model. The actual centipede frame was cut out of sheet styrene, then glued over the two original trucks of the tender, which I had already cut apart and rejoined together, after first filing away all extraneous detail except for the journal boxes. New springs and spring hangers were built up from brass wire and bits cut from Kadee plastic draft gear boxes. The front tender truck is from an Athearn streamlined passenger car.
Since this thread is for covered hoppers, please ignore all the other bits that
aren't covered hoppers, as I don't have a picture showing only the lower half of the tender.
Wayne