Tee as is.
Cut carefully around sleeves, and straight across the top.
Raid scrap stash for other fabrics you think will go well. I picked piece of pretty robin's egg blue knit from an old yucky tank top. Lay across t-shirt. Imagine a beautiful abstract pattern.
Starch is my secret knit weapon. Did you know if you spray the back of your top fabric, and then press it on, it will stick? I use this trick all of the time! It's like temporary adhesive! Awesome! I sprayed the back f the blue piece, and then ironed it onto my brown shirt. I find it's better to tap the iron. It you pull the iron back and forth, your knits go all wonky.
See? Nice and smooth.
Next draw your beautiful abstract design with water or air soluble marker.
Stitch the design. I always use a ball point needle when sewing knits. Another trick I've found to walk my machine around tight curves is to go in two stitch increments, lifting my presser foot and adjusting the entire garment every two stitches. Never pull knits. They will distort. This may sound tedious, but this whole piece took maybe 15 minutes.
CAREFULLY trim around your appliqued pieces.
Next I picked a pretty cotton that went with my design. Iadded a few more whirls and swoops, starched my cotton scraps to the underside of my brown shirt, and stitched using the same "two-stitch"method.
Carefully trim the brown away from inside these last areas, leaving a reverse applique.
Isn't it pretty? Very Alabama Chanin, if I do say so myself.
Next I made a casing to accomodate 1.5 in elastic. I like thicker elastic on adult garments. It looks more professional.Carefully thread in your elastic, being sure not to twist it. It's very noticeable on thick elastic!
Try on! have 5 year old take pics of you, which you then have to edit to high heaven.
Sheesh. Help these days.