This is easy as pie and pretty darn cute if I do say so myself. Just don’t ask anyone over the age of 50. They won’t get it (I’m looking at you, parents).
I first saw a scarf like this on Pinterest, where it linked through to a site selling them for 35€. Hahaha. Yeah, right. I went to Value Village, picked up a really big men’s t-shirt (I mean it. Get a huge one.) and an old lace tablecloth, and set to work.
Start by cutting the body off the t-shirt, making a straight cut across under the armpits. That will leave you with a loop of fabric hemmed on one side. Right there you’ve got an infinity scarf, but it’ll be rather lacking in fabric. This is where the tablecloth comes in.
Cut along one of the side seams to turn the loop into a strip. Measure the width of the strip and cut a strip of lace that is the same width as the loop and anywhere from 1/3 to 2/3 as long as the original strip. That’ll depend on how much you like lace and how long you like your scarves, I suppose.
Pin the right sides of the ends of the t-shirt and the lace together, creating a loop again. Align the hemmed edge of the lace with the hemmed bottom of the t-shirt. Stitch the pieces together, using a zig-zag stitch or a serger.
Fold the seam allowance under the t-shirt side and top stitch it down so it won’t be visible through the lace. Hem the raw lace/shirt edge.
Voila! Scarf. Now… mine is a bit lacking in fabric. The next one I make will have twice as much. It will be twice as wide and twice as long. I think I used an XL men’s shirt, so I’d recommend seeking out a 3XL+ or looping another shirt into the scarf, like another piece of lace.