Lovely bars!
I just hit on a cool recycling idea too - I made granite looking rock or volcano rock looking soap. I chopped up all those failed experiments into teeny irregular chunks - threw down a layer of mica laden clear - sprinkled all the teeny tiny chunks over the top of that and then topped with a grey layer. Then I chopped the slab up into cubes and "faceted" the edges with a cheese planer. It turned out really really cool. I think it looks like granite anyway......the cool thing is - the more irregular the "faceting" is the more rough hewn rock effect you get!