Cupid's Bow is a common symbolism of love, although the beings most often seen utilizing the weapon are Cherubs rather than Cupid himself - the idea of Cupid's Bow is that the arrow it fires do no physical harm to the target and instead cause them to fall in love with the first person they see.

Normally Cupid (or another Cherub) will pick targets carefully but sometimes the arrow will misdirect and cause either comedic effects (common in cartoons) or more tragic ones.