Men's T-shirt Tutorial

Neck
Fold in 1/4 and cut a small circle. Enlarge the circle until it goes over the doll’s head with a little resistance if using paper towel to make your pattern

Sleeve
Measure from the shoulder to the start of the porcelain arm or desired sleeve length then measure around the man’s arm and add 1/4” total

Computer Drafting
It is created with basic rectangles and an oval which any graphics program can do the trick is to center the neck hole. To do the neck on this pattern by computer I measured the head width from ear to ear holding the tape measure over the top of his head and then measured from nose to back of the head and drew an oval those dimensions.
I also eliminated the seam allowance necessity by butting the sleeves against the body.