How would I be able to make a V neck shirt for a guy without much sewing? Answered

well if you want it to look "worn" then just cut a V in the front of a t-shirt but if you want factory look then do what orkesecurity said or just buy some mens hanes v-neck t shirts

Start with T-shirt, cut down front to bottom of V, fold back to the lines you like and sew down?

(I'm not sure what a "V neck shirt for a guy" is. The only V-necks I've seen have been on gals.)