I’ve also slightly altered the original pattern to have a rounder neck, deeper dip hem, and straight sleeves.
How to add cuffs to a DIY t-shirt
You will need:
a t-shirt (make your own following the instructions here and here)
2 rectangles of fabric, 6 cm wide and twice as long as the arm holes on your pattern (or equal to the distance all the way around your sleeves plus 3 cm)
sewing machine, ballpoint needles, iron, pins
1. Take one rectangle, match up the short sides (the side that measures 6 cm). Sew this together using a straight stitch and 1.5 cm seam allowance. Repeat for the other rectangle.
2. You should now have two closed bands of fabric. Take one band and with wrong side facing up put the band over one sleeve of the t- shirt (right sides together).
3. Pull the band all the way over the sleeve so that most of the band is over the sleeve and the inner edge is well over the sleeve. Match the outer edge of the band to the outer edge of the sleeve. Pin and sew using a straight stitch. Repeat for the other sleeve.
4. Now you should have an add extra bit add to your sleeve. Perfect for cuffing. I rolled mine twice (folding towards the t-shirt, not away) and used an invisible stitch to keep the cuffs from unrolling. But, hey, they’re your cuffs. You can roll as much, or as little as you like.
5. Wear in all their sloucy, awesome glory.