I wouldn't try. I would go to the hardware store or automotive supply store and pick up some "Goop" or a similar product. It is made to get grease off of your hands and can be used on your laundry as well.
Try with acetone, benzene, butanol, etc. (good for materials without plastic fibers)
use tide stain stick
so long as the delicate fabric is not acetate, triacetate or modacrylic, you can use nail polish remover. Test a small corner of the fabric to see if it is color-safe. Then rinse the nail polish remover out of the fabric thoroughly.
Apply Nail polish remover
You can use bleach if it's a white shirt or you can get stain remover.
vanish stain remover, trust pink 4get stains
u get a picture and put it on grease paper then you iron it on :)
Test it yourself. It apparently is too risky to try.
Try and oil-free eye make-up remover on the stain and it should come right out!
A bad idea; an old shirt is the wrong shape, and shirt fabric isn't very absorbent. But in general, lay the shirt out mostly flat, then fold it into triangles. The point of the triangle goes in front, and the wide part goes in back.
Different stains require different methods of removal. Most stains, however, can be removed using a stain remover like Shout. You would need to spray the remover on the stain, rub it in a little, then launder according to the manufacturer's instructions located on the label of your custom t-shirt.
You use cold water to do this. First, soak the shirt in white vinegar to set the dye so it doesn't bleed.