Well this one isn’t exactly a billboard but its a cleaver optical illusion. I gotta give one to Papa Johns pizza for coming up with this eye hole add.
That is really awesome, as long as the glue doesn’t ruin the finish of the door! Also,
CLEAVER should be spelled CLEVER. A cleaver is a large knife you cut meat with.
and
ADD should be spelled AD. ADD is the opposite of Subtract, AD is short for Advertisement.
that’s smart and funny