How to Recycle Sweaters into a Heart Decoration

Give new life to old sweaters by turning them into a handmade heart decoration. With just a feltable sweater, a wire hanger (or garden wire), and a hot-glue gun, you can create a cosy, sustainable wall hanging in under an hour — ideal for Valentine’s decor, recycled craft lovers, or cosy home styling.

After the annual New Year's purge of my wardrobe, my pile of recycling sweaters has grown. I've got a big upcycle project planned for a lot of the sweaters. But this little stripy jumper, unfortunately, didn't make the cut. However, I did manage to recycle the sweater into a cute heart decoration.

Valentine's Day is actually my birthday, and this year it's a big one! I thought it would be fun to decorate my home with lots of fabric hearts.

I've already had fun making some heart string lights. Now I've got the sweater felt heart decoration to add to the decor, and there is more on the way!

Recycle Sweaters For Valentine's Heart Decoration

This is a straightforward, sweet Valentine's craft that can be completed in under an hour and costs virtually nothing. It's so simple that you could even do it with the kids.

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What You Need

• Old wool sweater - Ideally, the sweater should be at least 80% wool
• Wire coat hanger - or wire of a similar thickness
• Hot glue gun
• Wire cutters
• Rotary cutter and mat
• Metal ruler

How to Recycle Sweaters into a Heart Decoration

Step 1: Firstly, I bent the wire coat hanger into a heart shape and used the wire cutters to cut the hook off. If you don't have a wire coat hanger, use some garden wire to shape your heart.

I'd done this before when making denim heart wreaths.

Step 2: Next, I felted the sweater by putting it in a hot wash, as I did with my sweater mountain cushion. Once felted, I cut off the sleeves and put them to one side for another project.

Top Tip: If you find that your sweater does not felt, maybe because it doesn't have a high enough wool content, you still might be able to use it. As long as the sweater doesn't unravel when you cut it, it can be used for the craft. Also, a t-shirt would work just as well with this heart decoration.

Step 3: For the next stage, I cut the sweater like you would cut a t-shirt to make t-shirt yarn. It is difficult to explain how I did that in words; however, some great infographics on Pinterest show exactly how to do it, like this one.

Basically, you lay the sweater flat and cut the sweater into strips from one folded edge to the other. But to not cut to the top folded edge, leave a gap of about 1cm.

 Step 4: Next, to ensure I cut the felted sweater yarn to an even thickness, I used a rotary cutter, a cutting board, and a metal ruler. I cut the sweater into pieces so that the yarn was just under 1 cm wide.

Step 5: Finally, when you have made the sweater yarn, you are ready to make the heart decoration. Start off by glueing one end of the yarn to the wire heart using a hot glue gun.

Then, wrap the yarn around the wireframe. A random crisscross pattern works best. Continue until the heart is totally covered. When you are finished, secure the end of the sweater yarn with hot glue.

All that is left to do is to hang the heart decoration. I was lucky to have a striped sweater that was perfect for this heart decoration. I think it would look just as good in red or pink.

Another option is to use sweater yarn made from two different sweaters in two different colours, such as red and white or red and pink. I've even made a neon version of this heart decoration using El wire.

Other Sweater Felt Ideas

Don't throw away the unused recycled sweater sleeves; you can use them to make an upcycled sweater felt garland or an upcycled knot pillow.

Even the smallest of sweater scraps from this project can be used to make a felted heart brooch for Valentine's. Or perhaps you will like these felt embroidered hearts.

Sweaters are just one of the many fabrics I love to upcycle. For Valentine's Day, I also have many upcycled sweater craft Christmas ideas.

Check out these other Valentine's crafts for adults and other sustainable ideas for old clothes.