The most expedient way is to find a ready-made model on the Internet. Such things as axes and hammers - abound.
When you search - try to find a textured model. This will denote that it already has a UV. Later, you can change the texture in the graphics editor.
But, if you find a clean mesh without texture - then you will need to make a UV and it requires certain skills (this is commensurate with the skills of 3D-modeling).