Home  >  Clipart  >  Cartoon  >  Sign   ...  15 of 20 Free Sign Clipart Full image dimensions ~ 850 x 850 pixels File size ~ 27 KB Related Keywords ~ alien, alien, cartoon, caution, sign, ufo, warning This Public Domain image is available for personal and commercial projects. Home  >  Clipart  >  Cartoon  >  Sign   ...  15 of 20 Some of this Month's Most Viewed Cartoon Clipart ...