Knick-knack paddywhack is a paper note in the Fallout 76 update Wild Appalachia.
The note can be found at Van Lowe Taxidermy, in the display case near a strange bone. It is obtainable during Lying Lowe.
My friend WOLF,
I know you can "give a dog a bone,"
but what about a wolf?
Head to the basement to find out.