A handful of coarse gravel hurled into that eye might start the job; but acorns?
Another option is to cover the exposed earth with small stones or coarse gravel.
The man's boots crunched through the coarse gravel as he approached.
Acres of coarse gravel with a few brave weeds growing out of it might be all one would see from morning 'til night.
Sharp sand or coarse gravel will damage their whiskers.
Well, his right fist was full of little gray lumps, like coarse gravel.
The beach itself was lined with coarse gravel.
Again the tech sergeant ground gravel, coarse gravel this time, between his teeth.
Cautiously, the smith edged down the river bank, onto a stretch of coarse gravel.
The bottom here was flat rock and coarse gravel, the water clear and cold.