think for a moment; what if lots more people just like you asked for cuttings from the Glastonbury Thorn tree? there would not be much of a tree left after, oh, fifty or so people did this.

one reason monuments and ancient stones etc. need protection is because people think nothing of chipping off a bit of one of the rocks of Stonehenge, or hacking off a hunk of one of the Rollright Stones, for a souvenir. Over time, great damage has been done by this sort of activity...

What is wrong with enjoying something without destroying it?

As the Ancient Sacred Landscapes Network says: "Don't change the site; Let the site change you."

Just a thought, not meant to be an attack.