Design Stitch offers their custom sets to a limited number of buyers. Limited quantities promise a guarantee of originality. These sets are usually sold to only six customers before they are listed as sold out.
Teddy bear clipart is very much in demand today, and not that hard to come by. And if you want it for free, then there are a lot to choose from, but you can't use it for commercial reasons. Many of the sites will allow you to put the images on your own personal website but don't want you charging people to put it on their sites, but don't charge people to use or download it. You won't be breaking any copyright infringement laws as long as you follow the site's rules.
Various websites contain thousands of readily available images. These drawings are further grouped under sub-categories; say baby girl images, baby boy images, baby shower images, etc. One can avail the services and select a single drawing or a group of drawings from a particular sub-group according to ones needs.