Start with your card, stamp and embossing supplies. Randomly stamp over the card with your stamp, cover with embossing powder and heat set.
Cut the embossed card into strips slightly smaller than your soap as shown below so when you wrap the soap you can still get the colour contrast as well as the embossed strip. Use string or fibres of your choice to tie a basic knot or bow around your soap. You may want to use double sided tape to secure the embossed card before tying the string.