Since ancient times in Japan, the heart symbol has been called Inome (猪目), meaning the eye of a wild boar, and it has the meaning of warding off evil spirits. The decorations are used to decorate Shinto shrines, Buddhist temples, castles, and weapons.[6][7] The oldest examples of this pattern are seen in some of the Japanese original tsuba (sword guard) of the style called toran gata tsuba (lit., inverted egg shaped tsuba) that were attached to swords from the sixth to seventh centuries, and part of the tsuba was hollowed out in the shape of a heart symbol.[8][9]
Apparently so, although it seems to have a separate history and meaning from other historical uses. From Wikipedia:
Since ancient times in Japan, the heart symbol has been called Inome (猪目), meaning the eye of a wild boar, and it has the meaning of warding off evil spirits. The decorations are used to decorate Shinto shrines, Buddhist temples, castles, and weapons.
The body spray is Axe. And both spellings are accepted for the tool, with axe being the common spelling and ax being the american, so it's not a matter of correct or not.
But you can find a boyfriend and get him into blacksmithing so he can make you one. I feel like a ton of men won't need their arms twisted much to do it (myself included).