I saw a recipe once, it just said to melt your M&P, pour out a VERY thin layer, & when it is firm cut it into wee pieces. They suggested to use a straw as a punch. It sounded too labor intense, I did not try it.
I haven't tried this, but I think that it would work. Just take a bar of your soap, CP or HP, and a potato peeler. That will make thin strips, then you could stack them and cut then into whatever shape you wanted.
came accross this in the soap recipe and tutorial forum-soapbuddy has a splendid concept, and i'm going to try this with soapmakerman's deluxe beveler/soap planer the next time i get home. i suppose you would do this after your bars were past the wet stage and before they dry too much and become too brittle.
has anyone else tried this? could you do this with melt and pour? i would think that it would be a little less brittle than c/p.
this would seem to be a lovely option for your bath.