Sometimes I find myself without my coffee travel mug, and have to succumb to using another disposable cup. This usually happens when I'm in a hurry, my travel mug isn't clean, and/or I'm being forgetful.
I've always felt the most wasteful part is the little corrugated cardboard sleeve. If I were patient enough for my coffee to cool, I wouldn't even need it. After seeing a few of these reusable fabric sleeves all over the internet, I decided it's not a bad idea to use up some scraps this way. The sleeves are much easier to keep in my backpack and purse, and don't require too much space or cleaning (like the travel mugs do). In the event that I forget my mug again, I'll at least have these to use! Plus, it's a great way to use up smaller scraps of fabric.
-One cardboard sleeve
-Quilt batting (I used a dense bamboo/cotton blend, ~12"x4" rectangle for each layer, I used two layers of batting since it was thin)
-Outside and inside fabrics (can be the same, ~12"x4" rectangle of each)
Open up the cardboard sleeve at the glue joint. Lay flat over your fabric pieces. Cut with a 1/2" border around the shape for each layer.
You will end up with 3-4 layers: outer fabric, inner fabric, and 1-2 layers of batting, depending on thickness.
-inner fabric (pattern side up)
-outer fabric (pattern side down)
-optional second layer of batting
Between the inner and outer fabric layers, fold the elastic in half and pin the ends to the center edge of the patterns like below: