The hammer and sickle are both bigger and composed of more material (are more dense) than regular hammers and sickles. They also have a higher strength modifier.
This means that they're heavier and do more damage than regular hammers and sickles of the same material and enchantment level. They should also be slightly better at blocking.
Unlike a regular sickle though the Gorovits Family Sickle is missing the isGoodWithPlants tag so it doesn't do 1.5x damage to plant enemies. That seems like an oversight that needs fixing.
You cannot wish for them.
Overall they're just a plain better hammer and sickle without any magic properties unlike the other named weapons.
System would indicate in graphic if person is mounted on horse or not.
Same system also show if person mounted on boar, elephant, polar bear etc.
Or if person mounted on ass.
Ivan find mounting on ass funny.