Do you want to kill them? or remove them nicely? Or remove them fast and nicely.
Kill - Boil LR (Not recommended)
Remove nicely - Point powerhead at them and force them to move onto a smaller piece of LR.
Face and Nicely - Chisel LR from under their foot being careful as to not tear their foot.
These are green bubble tips. I bought it from the fisf guys swap a while back. I tried to use the ice cube method to remove them but the ice melts to fast. I would like to give then to who ever wants them. I did squirt some joes juice into one and It was easy to remove.