Gee, thank for the compliments. The last picture shows that my wife likes to use them as well.
Just so you won't think there is only one possibility - below is another brush fork (of four) built for a L-series tractor. The black water pipe tends to bend if anything solid is struck hard is its only weakness.
The other option is a set of discarded, second-hand, forks from a forklift repair place that were modified for use on a tractor's bucket.
The last photo is of a log carrier built on a forklift frame for hauling logs straight off the front end. It is for getting between trees, going down a road, loading a trailer, and for bucking logs into splittable length with a chainsaw at waist height (a real back saver).