How to clean up acorns from loose gravel without losing stones

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

1. 1
   Using a high-powered leaf blower calibrated to move acorns without displacing stones
2. 2
   Using a garden weasel nut gatherer or nut wizard tool
3. 3
   Using a shop vacuum
4. 4
   Hand-picking acorns individually
5. 5
   Importing squirrels or goats
6. 6
   Removing the gravel entirely or cutting down the tree
7. 7
   Using propane weed torches
8. 8
   Spraying herbicides like Roundup or RM43
9. 9
   Applying homemade mixtures of vinegar, soap, and salt
10. 10
    Adding more crushed gravel
11. 11
    Hand pulling or using a string trimmer
12. 12
    Making a game with toddlers to pick them up by hand
13. 13
    digging and sifting manually for hours
14. 14
    renting a tiller and removing the top layer of contaminated dirt to replace with clean fill dirt

In their words

Unedited, most upvoted first, each linked to the thread it came from.