Turn a black accent pillow into a spook-tastic Halloween decoration with a bit of crafting. Using clear-drying white crafts glue, glue a lace doily to the pillow, placing it slightly to the left and center, leaving the edges unglued. Cut a piece of embroidery floss long enough to wrap around the pillow. Tie one end of the floss to the doily, looping through one of the lacy open edges. Wrap the floss around the pillow, tying the loose end to another open area of the doily. Repeat with other pieces of embroidery floss to create a spiderweb look. To finish the pillow, glue a toy spider on top of the doily.