Oops, it doesn't look like 'Busking Busking day' is a national day..

Other days

hannah

Hannah Day
slime

Slime Day
ask out your crush

Ask Out Your Crush Day
kale

Kale Day
brow

Brow Day
china

China Day
law

Law Day
pumpkin

Pumpkin Day
hiv awareness

Hiv Awareness Day
cat girl

Cat Girl Day