According to PaPaPeng :
Come to think of it garden tool
manufafturers should invent either a lawn mower attachment effective
for sucking up and shredding the leaves then throw them into a bag via
a chute. Or otherwise make a dedicated machine for this. It will be
a welcome companion to the leaf blower.


They do. Cub Cadet, for example, makes a gas powered wheeled vacuum
unit that sucks up leaves, shreds and then bags 'em. A mere $1300CDN.

Rented one once. Real nice. Big trick is to make sure that the leaves
are _dry_.

Came very close to buying one. I'd continue to rent, but they're relatively
rare in rentals, and it's a PITA getting it in and out of the trailer.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.