The message .com
from "James Berry" contains these words:

Would a more "industrial" vac be able to suck up the walnuts?

Any other ideas?

Leaf rake.

Sell or give away the walnuts.

Or I'd come and pick them up for you, but if you were too far away for
me to walk/cycle, and you're desperate to get rid of them, you could
bring them round here...

--
Rusty