Some people might shy away from clipart because they don't think of it, or they think it's too much work. If you find the clipart in a clipart book that will be too much work and it won't look good because you'll have to use a photocopier to resize it and then the quality degrades.
Wendy has furnished clipart that has numbered bears, the alphabet bears as well, as well as punctuation bears. You can use these images to spell out words on your website, or even on an invitation. Some people are creative enough to use them to make wonderful invitations for parties. She also offers personalized clip art, but something like this would have to be specially ordered from her website.
When it's Christmastime, many people love to create their own greeting cards or websites or Christmas holiday letters. And they like to make these themselves on their computers. That is one reason why Christmas clipart is so very popular when people are searching around on the internet.