Autumn is upon us- how does one harden one's conker to maximum strength?
Make sure your conker is clean, symmetrical and flawless.
Save a couple of nuts every season, since the hardest nuts will be those of yesteryear.
Lacking conkers from last season, "laggies", you can harden your new nuts by:(i) Briefly baking them in an oven
(ii) Applying clear nail-polish on them
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