Ok, it isn't commercially available, so I took things into my own hands and made a batch.
Simple melt and pour soap from the Hobby Store.
5 ounces of Lilac Vegetal heated in a microwave to boil off the alcohol and water without scorching the "essence" like you might on a stove top.
Wound up with about 3 tablespoons of dark green soup.
4 ounces Shea Butter unscented and 4 ounces Goats Milk unscented melt and pour glycerin soap.
Melted soap and added the LV soup and;
1/2 teaspoon of Bentonite Clay
1 Tablespoon of Glycerin
3 tablespoons of Castor Oil
2 ounces of LV right out of the bottle
Yellow and Blue soap dye (from the same hobby shop).
Poured into molds and cooled.
Did a test lather and it lathers just superbly, the clay makes it very slippery. It smells perfect. Not the "out of the plastic bottle smell" but out of the Glass Bottle and into your hands smell. I just keep wanting to go back in there and smell it.
Pics are worth a thousand words.