cute monster. happy halloween. head face with horns, teeth. black silhouette monsters. cartoon kawaii funny boo character. t-shirt

monster face head icon set halloween silhouette doodle sketch cartoon vector flat lined line contour tshirt shirt cute eye scary alien animal print fang horn baby background boo card party character child comic decorating design fun funny happy holiday humor kid kind mouth spooky tooth teeth black white monster halloween horns teeth monsters kawaii character t-shirt design childish collection background