I did this a while ago but kept forgetting to add it to the blog.
Since most of this little storage unit is hidden, I didn't feel the need to concern myself with the rest of it. The top can be seen but it doesn't really bother me. And I can't see it when sitting. The unit is not seen from the sides as it's located between 2 small cabinets on my desk with no space on either side.
I used washi over all the wide areas on the front. I didn't have to spend the money on or mess with paint. And it can easily be removed or changed.