re: A TOY manure spreader...???
Yeah, I pretty much knew I was asking for it, but there it is.
Where I grew up, die-cast tractors, combines, and other farm implements were part of a lot of toy shelves. Most proudly wore the green paint and colors of John Deere.
The toy manure spreader had a spiked roller at the back end that was geared to the wheels to spin, just like a real one.