Warning Sign Clipart Image http://www.iclipart.com/search.php?keys=21132&id=198&id=198 Surfdoggie's Review: Clipart picture showing a simple warning sign. This is a bacl and white clipart image that shows a sign with the word, "Warning". Please visit the link above to find out how you may use these images. You may need to pay for use of the images or abide by certain licensing restrictions. danger, dangerous, safety, sign, signs, warning, warning sign, warning signs