How do you collect spent pellets from the lawn or garden?

The ones that bounced off the back stop, out of the catcher, or missed?

Rake? Scrape with hoe? Broom and pan? Vacuum cleaner ?
The motor mower might lift them but the cuttings go in the compost, the pellets would have to be riddled out, too much work.

I'm looking for an easy solution. I'm somewhat disabled so bending down and picking them up is so not an option.