In addition to the asthetics, you'll want to consider the format the art is provided in. Raster, or pixelized images do not give as good of quality in print projects as vector, or eps images. If you want to change the colors to match your school colors, and if the images are going to appear large (on a banner or sign), be sure to look for vector eps images. You will need some type of vector based illustration program to change the colors. Coreldraw and Illustrator are the two most commonly used programs. If you don't have one of these programs, check with the Web site provider of the clipart. In many cases, they are glad to make color modifications on your behalf for a modest fee.
This is great for everyone especially for the kids to give to their friends. Look for plastic ornaments at your nearest craft store.
Just like how the Greeks and Trojans fought back and forth before any decisive victories were won, clip art has passed between no-cost and paid services in an attempt to maximize the quality and availability of both royalty-protected and free graphics. The battlefield is strewn with small, unknown clip art distributors and large image conglomerates alike; some died, some were bought, some faded away, but others found their niche and made it work. Free clipart libraries began to find their home and expand across the internet. Like a wave of armored chariots, the new medium pounded down against the old technology-