If you are interested in how to make the offside raglan (or any raglan, really) into a sleeveless tank, here is a video showing you how! If you need help with the curve of the arm opening, feel free to use any set in sleeve bodice as a template; you can layer it over the sleeve, align the armpit points and the neckline, and just copy the curve! This mod is rated intermediate since it includes a little more guesswork and intuition in attaching the sleeve to the attachment. Confident beginners should be able to pull this off, as well.