To make this ornament, you have to embroider both parts of the desing on 2 layers of Vilene-type water-soluble stabilizer.
Rinse the stabilizer and leave to air dry. Press with steam. Zigzag both parts together.
Impotant Note: It's very important to use as small a hoop as possible. E.g. if your design is for a small hoop, use the small hoop, not the large one; if your design is for a large hoop, use large, not mega. Do not try to embroider several freestanding lace designs in one hoop. This is because all water-soluble stabilizers stretch, and in a bigger hoop, it's going to stretch more. This can lead to the design falling apart after the stabilizer is dissolved. It's always better to embroider one part at a time.