3D paper balls / ornaments. I made the flower-like one out of red felt as an ornament. Poked a hole through one of the petals and tied a loop and a knot on the underside of the petal, then attached the rest of the flower together. The knot was hidden and it was very cute.
3-D paper ball ornaments with instructions and printable templates for download, by How About Orange: Made from 12 slotted flower shapes that fit together to form a sphere. No adhesive needed; the only ingredient is paper.