How to Sew Amigurumi Parts Together
Joining amigurumi pieces can feel a bit fiddly when you first try it, but it gets a whole lot easier once the basic technique clicks. What you're aiming for is to attach each part neatly, securely, and in just the right spot, so your finished toy ends up looking balanced and well put together.
Whenever you finish a new part of an amigurumi that's open at one end, your first step is an invisible fasten-off. Because this piece is going to be sewn onto the base around its whole edge, cut the yarn long — leave enough to wrap around the perimeter 3 or 4 times.
For the invisible fasten-off itself, you can check out our article [here]. In short, take a tapestry needle through the 2nd stitch on the hook, then turn and pass it under the back loop only of the last stitch on that row.

Before attaching, you can add a little stuffing to give the piece some volume.

Then pin everything in place before you start sewing — this lets you tweak the positioning while you still can, before anything's locked in for good.

Now, using the same yarn as the piece you're attaching and a threading needle, begin stitching around the edge:
- Push the needle into the nearest hole on the base piece and bring it out through the hole on the opposite side of that stitch.

- Working from the inside out, slide the needle under the stitch on the piece you're attaching, right above the spot where your yarn came out of the base.

- Then pass the needle from the outside in, going under the next stitch on the piece you're attaching.
Keep stitching back and forth around the edge — catching one stitch from the body each time, and working around two stitches on the attached piece. Pull the yarn snug enough to hold everything in place, but go easy so you don't squeeze the shape out of form.
As you go, stop every few stitches to double-check the position and shape. If the piece starts leaning or a gap opens up, fix it straight away. For the bigger parts — heads, legs, tails — work slowly and evenly all the way around for a secure, tidy result.
Once you're done, run the yarn into the base body and bring it out on the far side. You can trim it close to the surface and it should hold.

For a little extra security, pick up one loop right beside where the yarn came out, draw the yarn through it, then send the needle back into that same hole. Pull tight and exit somewhere else on the body — this creates an invisible knot, and you can safely snip the yarn flush with the surface.
