Heh...I've given up trying to put eggshells on the compost heap. Cisco *loves* them...so they never stay.
I've got one of those compost bins with the covers. But sometimes I don't wait for the eggshells to decompose completely. So I end up with eggshell fragments in muh top dressing. I guess I should grind them up, huh?
LIFT OFF - God bless them and watch over them till their safe return.