Could use some texture related help

First off, a link to my plugin, here.

I would like to add textures for the items my plugin adds (with Ultraitems), but I have zero texturing experience, and no good pixel-art programs to do it with. In case you didn't click the link above, my plugin adds a group of dowsing rods (which can be set to Ultraitems), wooden, stone, iron, gold, obsidian (just because), and diamond.

Here I have the picture I cobbled together in an hour or so, wrestling with Gimp.

Anyone who can post images for the other kinds would be thanked profusely and credited on the plugin page.

Edit: Never mind, ForeverEternal just sent me some amazing sprites I think I'll use.