War bonds lighters World war two lighters

Does anyone know if these used to be some kind of war posters or
something?
Were these sayings on these lighters actually used in war times?

The website says wholesale items from China. So I am doubting if they're authentic, most probably replicas.

Talking about lighters, in my neighborhood, there is a Vietnamese restaurant I go to, and the owner keeps a amazing collection of US Army lighters gathered from the Vietnam War.