Jackie, a Kong is a rubber toy that you can stuff with treats.  Bucky and Sadie have the medium sized ones of the picture below, although they come in all different styles, shapes and sizes.  We used to fill them when we were leaving them in the RV and when we would come back, they would still be working on getting things out of them.  They make a Kong spray that you can put in them to hold the treats in, and they have different flavors.  The hounds like the peanut butter the best, so I usually just use regular peanut butter and pieces of PupCorn, which they love.<br /><br /><img src="http://i86.photobucket.com/albums/k96/cherylfuller/kong.jpg" border="0" alt="IPB Image" />