For creative souls that love teddy bear clip art, you should have no trouble finding what you need online. Either try the websites above, or search for some other sites that offer cute images. All over the web clip art is used, for crafts, and for scrap booking. The best is the free kind, so get as much free as you can by doing a proper search.
Pixabay's description of themselves is pointed and very clear. No technical jargon or fancy words to let you know that they offer free images. Their website says "Finding free images of high quality is a tedious task - due to copyright issues, attribution requirements, or simply the lack of quality. This inspired us to create Pixabay - a repository for stunning public domain pictures. Your source for free vectors, free drawings and free photos. You can use any Pixabay image without attribution in digital and printed form, even for commercial applications."
It can be very aggravating. True enough, these people need to get enough money to run their websites and that is a good way to do it. But for the person just looking for a little cool looking Christmas tree, or a reindeer or even a set of stars to go on the Christmas letter they are creating, it can be a lot of work to try and download a free design.