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*This tutorial was originally posted at Michael Ann Made.*

I love ugly Christmas sweaters. The first Christmas my husband and I were married, I made Christmas sweaters for him and me. He got a hexagonal snowman, and I got an artistic tree. They were supposed to be ugly, but they turned out cool instead.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

Now that we have a little babe this Christmas, I decided he needed a a Christmas sweater too. He gets an artistic Santa.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

As you see you can make a cool Christmas sweater for anyone, but this tutorial is specifically for a baby sweater one-piece. You can use these basic instructions to make any size sweater. Here are the basic shapes drawn out that I have done, but you can do any shape you want. The easiest one is the tree.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

Supplies
Pattern
2 or more old sweaters in the colors you want
Thread, scissors, pins, etc.
Sewing supplies*
1. Get a pattern. I traced the front of a one-piece, the back of another piece with a center back seam, and the sleeve of another.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

2. Draw the shape you want on the front piece. There is a seam between each shape. Cut apart pieces. I like to leave mine in order so I don’t forget what goes where.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

3. I utilized the hems and finished edges of the sweater. I cut out the neckline on the neckline of the sweater and the legs on the bottom of the sweater. I also did this on the back by cutting the back pattern piece in two.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

4. I cut out all the pieces and laid them out in order. (See how the back piece is two?) I also added seam allowance to each piece when I cut it out. Some pieces I forgot, but I’m not worried. It’s stretchy fabric.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

5. Pin the triangle/rectangle pieces into the coordinating piece. Sew with the coordinating piece up.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

6. You will then sew around the edge. You will have to fiddle with the fabric, but the stretch will help. Then follow the instructions on the picture.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

7.  Zigzag or serge all your edges to finish them.

Baby "Ugly" Christmas Sweater One-Piece Tutorial
8. Once you have the rectangle pieces in, sew in the circles. Sew with the circle up so you can easily follow the round edges.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
9. Lay out your pieces. Then sew the the coordinating seams together making sure you match up the shapes.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
10. Put the back together.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
11. In this version I added snaps to one shoulder to fit it over my baby’s head. (I used twill tape that had snaps on it*. I got it at Joann’s with a 50% off coupon. You can also sew on twill tape then sew on your own snaps.) Follow the instructions on the picture.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
Leave the sleeve edge unfinished.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
12. Sew the other shoulder seam. (Mine has random seams from the previous sweater construction.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
13. Sew in sleeves with snaps closed, and then sew the sides.
Baby "Ugly" Christmas Sweater One-Piece Tutorial
14. On the inside leg seam do the same as the shoulder by folding the edge over and sewing the snaps over it.
Baby "Ugly" Christmas Sweater One-Piece Tutorial

That’s it! You now have a little baby Christmas sweater one-piece.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

With an easy way to change the baby’s diaper.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

There’s a couple random seams on the back but it fits him well.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

Now we have a family of holiday sweaters.

Baby "Ugly" Christmas Sweater One-Piece Tutorial

Quick tip: If you want to make an adult sweater, cut the pieces out but don’t cut into the hem of the sweater. Sew the band onto the bottom of the sweater to finish it. 

Author: Heather