Today was our ukulele summer swim party, and those of us with plastic ukuleles brought them to play alongside—and yes, in—the water. A plastic uke deserves a plastic case, so here's a simple and inexpensive way to make one:
You need a 59-cent Ikea woven plastic shopping bag, a 20-inch (or so) zipper, thread, scissors and some duct tape. That's all. A bit of sewing is required, but nothing overly complicated. Use a nylon or polyester thread, set your stitch length fairly large, and it can be done in an afternoon.
The most time-consuming part is laying it out. The Ikea bag is so big that your uke would get lost in it. We want to size it down a little, so the first step is to take out the seams and remove the bag's bottom (below).
An ukulele's weight is normally centered right at the spot where the neck meets the body. Lay your ukulele so that this spot is at the midpoint of the straps. That way when you pick up your bag with the handles, it will feel balanced in your hand. Cut off the excess as shown, leaving about 1/2" for a seam allowance. I made my bag square in order to be able to stuff a towel and some other extras on top, but if you want a closer fit, you can cut the bottom off at an angle (below, second photo) or even in a more traditional curve.
Next, add a zipper: Cut the bag open so that you have two flat sides, and center the zipper between the top edges. You'll need to cut zipper stops for both end, then carefully sew around the zipper, using a zipper foot if you have one. As shown here, the zipper sides will stay more securely if pinned, but other seams can be temporarily held in place with painter's tape.
Now you have a piece that looks roughly like this. (sorry—no photos of this stage!) You want to cut two sides and a bottom, all about the width of your ukulele, plus that 1/2" seam allowance on either side. The sides and bottom can be a single long piece, but you will have to piece it together using the extra pieces from bottom and sides. Sew with your seams facing out. This is not how most bags are sewn, but it means you won't have any raw edges to scratch your uke, nor will you have to do any fancy seam finishing. This is a 59-cent bag, so the simpler, the better!
You're almost done. For the last step, you'll want to deal with those raw seam edges that are on the outside. Duct tape is fast, water-resistant, and comes in a multitude of colors and patterns. I used an electric blue that is pretty close to the color of the bag, but there's no reason one has to keep everything uniform when duct tape comes in florals, plaids and even leopard print, to name a few.
- Reinforcement: a bottom insert is a good idea. All you need to do is cut a piece to size from cardboard, a piece of foam mounting board, or an old lawn sign. You can leave it as is or wrap it in tape to give it some protection.
- Pockets: if you have two bags, you can use the side panels of the second to make interior pockets. These can hold both music and lightweight plastic or foam to help hold the bag's shape.
- Foam support: this is simply a piece of 2-3" foam cut to the shape of your instrument. Electric carving knives are the preferred tool of foam carvers, but any serrated manual knife works well enough for these purposes.
- Plastic food container: to hold a tuner, phone, and your other necessities.
- Decorations: stickers? markers? how will you customize your bag?
Ukuleles and water go well together, as long as you have the right materials!