Ultimate result......*edit* =) *edit*
Step 1: Gather Materials
1) 2 sheets of card-board scratch (from a box) that is more than the entire area of the tshirt being used.
2) A tshirt (prefer white for best results)
3) A pair of scissors
4) Box Cutter knife
5) A copy of the Apple logo on hand
6) Pencil and eraser
7) Flowral Spray Paint (Colored)
#7 is the most important because you have to make sure you get one that is designed for fabric. Flowral Spray paint is used to touch up flowers with darkened highlights and etc so it can also sometimes be used for fabrics. Regular acrylic spray paint (Krylon) can probably be used to but it may wash out.
Step 2: Draw Stencil
This is the most art intensive part.
Step 3: Final trace
Use the box cutter to indent the entire shape by just going over the guide lines.