You will be decorating your toad home with a technique called slip trailing.  Slip is a very watery form of clay.  You can make slip from the leavings of extra clay from when you formed your dome or any extra that you have laying around, which you will want to save in a bucket for future use  In order to prepare slip you will want to get some of the thicker clay from your bucket, and add the clay and some water to a drink mixer or even a blender to mix it.  You can even mix slip by hand.  You want a liquidy smooth texture with a little bit of body left to it.  The easiest way to apply slip is with a mustard bottle which you can pick up any number of places.  Pour your slip into the mustard bottle and you are ready to begin slip trailing.