Here is a simple little piece (Baby Crawling Outline), but I can see this modified for a baby sampler. This is 147×133 stitches. It is 3 colors and 3 skeins of floss. I can see you making the shirt pink for a girl or blue for a boy, maybe customizing an eye color. It has so much potential.
If you would like words to go with this chart. I offer custom work as well. Here is a link to that, so you can add it to carts as well. I have over 27,000 font options that I can work with to get you the look you desire.