Needle-felting intertwines wool fibers with each prick of a barbed tool. Handmade pillows show off details made from three types of wool. 

There's a halo of yellow merino-wool roving, three yarn patterns (including one with a loose square knot), and felt oval cutouts, all needle-felted to the pillow fabric.

See the How-To for All Three Techniques

Sources
Plant-dyed felt, 7 1/2-by-11 inches, achildsdream.com

Solid-colored 64's top merino roving in yellow, theyarntree.com

Yarn, purlsoho.com

Felting-needle mat, clover-usa.com

Mutlineedle tool with three 36-gauge needles; Felting needles, 36-gauge and 38-gauge;colonialneedle.com

More Felt Projects
Needle-Felted Fringed Scarf
Needle-Felted Vintage Clutch
Needle-Felted Scarves with Yarn Stripes
Needle-Felted Blanket with Felt Circles