Oops, it doesn't look like 'use a house phone day' is a national day..

Other days

my little pony

My Little Pony Day
cuddle up

Cuddle Up Day
bonang

Bonang Day
pumpkin

Pumpkin Day
lumpy rug

Lumpy Rug Day
brow

Brow Day
cat girl

Cat Girl Day
stud

Stud Day
comfy

Comfy Day
aloxolt

Aloxolt Day