All images on the internet have a copyright and can not be taken unless they are stated to be "public domain" or "free." Use any seach engine and type in  free images, bars, button, bullets. Different seach engines will return different image sites.  Following are a few image sites that I like. Note that image sites load slowly.
 

Cool Text   Generates image fonts	HeeYun Graphics   Huge site	Backgrounds/textures   Borders
Flaming Text Create image text,buttons,....	Free graphics Design sets, sidebars, buttons+	Barry's Images   Animations+
ClipArt.com   2 million images	Bells & Whistles Good	GoGraph  Listed by topics
Animation Library Huge	School ClipArt All free	Free Images on the Web still and video images, historical picture collections, US gov't agencies, California Digital Library, etc.