Thanks Jrose729 - well I sliced it today and so far so good. The color inside on those two 'blue/green' tubes still looks as calming as it smells with no color change. The design is fairly easy so pm me if you are up for wanting to try it.
I'm feeling more confident that it will hold up mainly because the soap has already been colored and no change thus far. And that I did not forget to put the stabilizer in the white portion (and small blue balls) of the soap. Your description alone about it - matches the senses quite well. I make it with Shea Butter and Olive Oil. It really lathers great! I'm sure it's the soap base as well.
A little tip I came up with - on the top of my fragrance bottles I have put a 3/4" or 1" circular sticker (from Staples) with the name of the fragrance and a notation that it needs the vanilla stabilizer. That way I won't forget to take it out in conjunction with any fragrance that needs to go with it. This would not have happened had I remembered.
Thanks for the vote of confidence with the fair - I'm now in countdown mode

. I'm slow to start this business but determined to really make it successful.
Hilary