Another petty Jobs' game
Apple is really wasting it's time as these 5-point Torx variants are easily defeated.
Start with <http://silverhilltools.com > or < http://www.brycefastener.com/ >.
If you can't access these sources locate a machine shop. The one we use uses PINS, made from hardened steel 'wire' mounted in a stainless steel handle. Taking a casting and subsequently making a mould is hardly worth while for low quantities.
The idea for using pins comes from the extraction tool sold by the manufacturers of the 'clutch' screw - the slotted style with 'ramps' that force a regular screwdriver out of the screw-head.
Another interesting point is that few of these security fasteners are patented - another opportunity for more Apple Tosh - although the principle is likely outside even Apples range of plagiarism.
Perhaps Apple could try reverse threading screws for their next failure of securing their boxes. I can understand why their their latest portable is secured - there's so little in it for the price charged.