if i had a power drill with an adjustable bed(clamps/holders and all

), I'll just drill into one corner of the 'mouth' and slowly move it across to his other corner...and proceed to make another 10

but what I did was drill the 3 holes (ala Hannibal Lecter) then join the 3 holes with a very sharp and pointed blade (you need very good eyes and very steady hands to hold and cut this piece of 'jewel'
caution all boys & girls: dont even ask mom/dad to do this unless they have been doing this for years...