hi meenie, try and get a book called
soapmaking ,the weekend crafter by joanne o'sullivan.
to create the ribbon effect you need a flat baking tray, pour some of your prepared soap mixture onto the tray in a thin layer leave to set but not totally it should be warm to touch carefully lift a corner with the edge of a knife now slowly pull away from the tray you are left with a soap sheet which you can cut out shapes or cut into ribbons you can also roll up the sheet while still warm and slice into spirials
have a play!
you can make different colours too
to embed them in a bar or loaf place them in your mold and spray them with surgical spirit make sure you get them all or it wont stick now pour over your contrasting soap mix (make sure not too hot as it will melt your ribbons)fill mold to top now spray again to get rid of bubbles.
leave to set when cool demold and slice.
good pointer too remember is surgical sprit is like glue in soap making and it evapourates.
pringles boxes are good soap molds especially for spirals
hope this helps