"SonomaProducts.com" wrote :

For 1/4" holes, rip down some stock to 1/4" x 1/4" strips. Cut to short
lengths. Use a pencil sharpener or whittle with a knife to a pencil
point on one end. Pound then into the hole and trim.

With cypress? Innit too soft for that? I'm sure trying that with,say,
cedar would result in some ugly mushrooming.

Jason