My first picture below shows a close up of some yo yo's.
Next, a mat made of yo yo's.
This style of quilt creates a great visual and actual texture, without adding much warmth. These kinds of quilts started showing up in the 1930's I believe, made with the bright pastel cottons of that era.
My mom remembers starting one of these as a child. Her aunt started herself and a cousin on yo yo's mainly to keep them out of trouble. I think the girls tired of it after about 6 yo yo's.
Not for me either - too much work!