I made these from glycerine soap bars last week for my gal's teacher's day school celebration. Very last minute, like late night project and wrap it up the next morning to bring to school 😆 (cube up the bars, microwave, add in eo and food coloring, pour into mold, next morning unmold, wrap in cling wrap, boxed it up) I had one extra bar and noticed it was slightly damp by noon 😣.. not sure where went wrong...