Hello,
One way to frag a toadstool leather is to cut a ring of flesh off of the toadstool like a donut. Then cut the donut into pieces about 1/2" to 3/4". Sew thread (I use monofilament line) through the peices and tie them to rock or reef plugs. They should attach within two weeks. Then you can take the string off.
To frag the devils hand, cut away pieces of a size you are happy with and follow the same procedure. They might take a bit longer to attach.
Be careful of 2 things though. First, be sure to tie them snuggly so they won't move much, but if you tie them too tight, the string will cut through them. Secondly, be sure and place the parent colonies under good flow after you cut them. Leathers are prone to infection after they have been cut.
Good luck, and I'll take some of the devil's hand when you get it fragged.
Later,
Trey