If you'd like to make one too - the pattern is super simple.
Leftover Sock Newborn Hat (queue it up on ravelry here)
Difficulty Level: Easy peasy!
Leftover sock yarn (I used .6oz of merino cashmere nylon Julie Spins Yarn)
3mm needles or size appropriate for gauge (you can use 12inch circulars, magic loop, dpn's, 2 circs, etc, whatever your favorite method is to knit a small circumference. Since the hat is too tiny, 16 inch circulars won't do, they'll have to be smaller than that.) **Note- if you use 12 inch circulars, you will need to switch to dpn's when the head decreases make the circumference too small. **
Darning Needle & Stitch Marker
Sizing: Please note, the sizes of newborn heads vary greatly. If you'd like to upsize or downsize the pattern, use the gauge to calculate the size you want, and make sure that it's a multiple of 10 and put that number in the directions. Easy Peasy!
Here is a fantastic (!) link to a size chart for baby heads, to better allow you to estimate sizes.
In this case, I wanted a newborn size so I want a finished size that fits a 13"-14" head, you'll want a bit of negative ease in there for a good fit, so subtract one inch from the final size. That leaves us with a knitted size of 12-13". Based on our gauge, 90 stitches will give us a good number to CO for that final size.
Cast-on 90 stitches. Join in round and placemarker.
Knit 3.5 inches plain stockinette
Start the head decreases:
Knit 8, K2tog all the way around
Knit 1 round plain
Knit 7, K2tog all the way around
Knit 1 round plain
Continue decreasing in this manner until you are down to Knit 1, K2tog
The next round, K2tog all the way around.
Slip1, K2tog PSSO, 3 stitches remain.
The 3 stitches remaining will become the i-cord umbilical cord. Start a 3 stitch icord and continue for 2.5 inches. Slip 1, k2tog PSSO to bind off. Weave in ends. Tie the top in a knot and voila! Easy Peasy Newborn Hat!