If gloomy February has you seeing grey, this Over the Rainbow Cold Process is sure to cheer you up. Made using the negative embed technique, this soap requires two steps. First, PVC pipes are inserted into the mold, and strapped down using large rubber bands. White soap is poured around the pipes and allowed to harden for three to four days. Once the pipes are removed , the holes are filled with colorful fresh soap. Made with rainbow hues and the juicy Blackberry Sage Cybilla Fragrance Oil, this project reminds me of a tropical vacation!
If you’d like to see another example of the negative embed technique, check out the Misty Maritime Moon Cold Process tutorial. For this soap, the pipes were inserted into the soap after it was poured, resulting in soap within the pipes. Both methods work extremely well, but I found the embeds were slightly easier to remove when the pipes were inserted first as shown here.