I whipped these up for Mason's preschool teachers on Friday morning. Yeah, I'm lame, and waited till the last possible day to put something together for them. These coffee cup sleeves are a great stash buster project, and go together VERY quick. I just traced a Starbucks sleeve, cut out 1/4 to 3/8 inch outside of trace lines. Then sewed straight on my trace lines. Turn and top-stitch, then add the snaps.
I lined with Insul-Bright, but I think next time I'll just use micro fleece or maybe even felt.