An essential part of the stock, one is built and two more await construction.
The V tipper comes from HLW, whilst the frame is scratchbuilt from stripwood and plasticard, running on IPE wheels and axleboxes.
First off the unweathered tipper.

The dents were made by softening the plastic
very carefully over a candle flame then pushed to shape with a suitable tool, in this case I used a AA battery and some pens but a spoon or the like would probably work as well.
The wood was weathered by using a solution made by leaving wire wool in vinegar in a jar for a week, then painting the resulting liquid over the wood. This has different effects on different woods so try it first!!

The "metal parts" of the wagon were then painted black and whilst this was wet "Real Rust" powder was sprinkled over it, with execss shaken off. This was left to dry. Then White Wine Vinegar was sprayed over it and left to work its magic...

Result!!

I added a little more "Real Rust" where needed to give more texture etc and went over it again with the vinegar.