First start out with a pattern. I printed out this heart for my sachets. I've used cookie cutters for patterns as well. For this project I'm repurposing aprons I found at the thrift store.
Cut out your fabric. You'll need to cut out two pieces - one for the front & one for the back.
Next cut pieces of ribbon. This is for hanging the sachet. Feel free to skip the ribbon if you want.
Now pin the front & back together as well as the ribbon.
Next sew up 3/4 of your sachet leaving an opening for the lavender. I used a bright thread for the stitching - it doesn't need to be perfect. I then used a makeshift funnel for adding the lavender.
I bought the organic loose lavender at a local tea store. I paid under $10 for the bag which will make a lot of sachets!
After filling the sachet with lavender stitch up the opening. And you're sachet is done!
You can always make different sizes & shapes plus use a variety of fabrics. Preferably a fabric that is breathable like cotton or linen.