Frags - dumb question

[lastlight]

i make a tiny ball of the play-dough, put a dab of crazy glue on the frag, jam the ball into it and put another dab of glue on the other side of the ball. I mount my stuff to the rockwork and the glass too and it's never failed. The epoxy is a nice interface between the two surfaces since it forms to shape as you push the frag down. If I remember I also toothbrush the rock a bit before doing this.