I had several old t-shirts in my refash stash, so I decided to create some comfy pajama/workout shorts out of them. I mostly followed this tutorial, but had to use a second shirt not just for the contrasting waistband, but also to make the legs a little wider since my original t-shirts weren't big enough.
I think I may have a new addiction! They're super comfy for sleeping, yoga, working out, or just generally being lazy. I've made three pair so far and am fighting the urge to keep going.