Systems, devices, and methods for a cosmetic sponge having: a tip portion at one end of the cosmetic sponge; an angled portion, where the tip portion is surrounded by the angled portion; a bulbous portion, where the bulbous portion is disposed proximate a bottom of the cosmetic sponge; and a bottom portion, where the bottom portion is surrounded by the bulbous portion; and a thermochromic pigment in at least a portion of the cosmetic sponge, where the portion of the cosmetic sponge changes from a first color at a first temperature to a second color at a second temperature.