This is some soap my sister and I made a couple weeks ago. It came out pretty well, and we had a great time with the packaging. Normally, we both make your typical cold process soap, so it was cool to try something different.
We call these SPA bars. They are also called salt bars. The oil used is 100% coconut, and you add about 1/4 as much salt at trace. For instance, if you used 4 pounds of oil, you'd add 1 pound of salt. The salt makes the bar harden within a couple hours, and it has a creamy lather.
My sister is WAY into beading (www.torchsongstudio.com and torchsongstudio.blogspot.com) and that inspired our packaging. Of course the batches were tiny - only 8 bars, so that helped :-).