These crazy patch butterfly blocks happened by accident.

The last time I made a crazy patch quilt, I wound up with two extra blocks. I have no intention of collecting UFO blocks, but I’m not inclined to throw my handiwork away. So I stared at them a while, trying to think of something to make from these extra blocks.

Something told me to cut them into triangles, so I did, still not knowing what I’d do with them. I played with the triangle pieces for a few minutes, and this design idea came to me. I think it’s a good one.

You could make a bunch of these for a quilt, a few for a table or bed runner, feature one in a sampler quilt, or just make one for a small project.

I plan to use one of these to make an oversized pocket on a skirt. And I’ll show you what I’m going to do with the other one next week, so stay tuned.

Here are the steps to make these:

Crazy Patch Butterfly Blocks

For each block, you will need:

• Background rectangle or square
• Muslin square
• Assorted small scraps

Step one: make the crazy patchwork

You could make these crazy patch butterfly blocks any size, but my examples started with a six inch square. Take your muslin square and arrange a several sided scrap somewhere near the middle of the square.  Choose another scrap with one side at least as long as one side of the first fabric, and place it right side down atop the first.  Sew along this seam, flip the second fabric down where the right side faces up, then press.  Repeat this process, gradually adding scraps, until the square is fully covered by your assorted scraps.

Then, place the block right side down on your cutting mat and use your rotary cutter and ruler to trim the fabric scrap from the edges of the muslin square.

I made one on video so you can see exactly how to do this step:

I should mention that traditional crazy patchwork also incorporates embroidery stitches over the seam lines. If you have a machine that does decorative stitching, then you can sew a line of decorative stitches along the seam after you add each new scrap to your crazy square. You don’t want to wait until the end, since these scraps go every which way.

Step two: cut triangles

Now lay the crazy patchwork square right side up on your cutting board. Use your ruler and rotary cutter to cut it in half diagonally, then move your ruler and cut diagonally the other way, to end up with four quarter square triangles. You could use scissors if you don’t have a rotary cutter, but if you want to make patchwork, you really want to get a rotary cutter and cutting mat.

Step three: appliqué

Here’s how to arrange the triangles to construct these crazy patch butterfly blocks. Place the top pair of wings with points together and the ninety degree angles at the outside bottom corners. Then angle the bottom wing pieces with the longest edges on the inside and the ninety degree angles pointing out.

Pin these to your backing square and appliqué using a satin stitch. I made these using a rectangular backing cut at nine and a quarter by eleven and a half inches.

If you will be using these for a small project rather than a quilt, there is an alternative way to hold your pieces in place rather than using pins. You could use double-sided fusible web. You would affix this to the back of your appliqué pieces and then remove the paper backing and affix the other side to the backing rectangle.

This makes appliqué really easy, but I don’t recommend using it for quilts, because it will be crinkly inside the appliqué. If you are making a wall quilt or other small decorative project, it is an easy choice.

Bust out the scraps

After you appliqué the crazy patch butterfly wings, then use corduroy or another scrap fabric to cut a long, tapered oval for the caterpillar body. Applique this in the middle, to cover the intersecting wings.

My son just pointed out that I forgot to add antennae to mine. If you’d like to add antennae, you can do this using hand or machine embroidery. Or you can use Debbie Mumm’s easy idea that she calls pen-stitch embroidery. That is, you can draw them with a fine tipped Sharpie or other permanent pen.

Here is one that I quilted the background using using tight free-motion quilting.

As you can see, these crazy patch butterfly blocks are super easy to make. They’d be cute on a baby, wall, or bed quilt. Or you could feature just one on an apron or skirt.

What will you make with these crazy patch butterfly blocks?