Monochromatic hand embroidery is equal parts challenging and enjoyable. As someone who tends to use a variety of color in most designs, I find that using only one color of thread makes me plan out my particular motifs with more careful consideration.
I particularly love working with white cotton floss on white linen. While it can be a bit challenging on the eyes - I find myself taking frequent breaks - the subtle texture is so pleasing to the eye.
Here's some favorite white on white pieces I've created. A few of these are available in my shop at the moment - click on the link under the image for full details.
White floral embroidery in progress
Pillow canvas in progress
White floral embroidered paperweight (sold)
A tiny design in progress