These little booties are warm and should stay on the feet, without the need for ties which might be uncomfortable for baby.
I made them for a baby three weeks old, but big enough to be worn over a baby onesie or tights, and with some growing room.
Tested and written with much help from Anna, Nifelster on Ravelry.

Pattern notes:
The construction is much the same as an after-thought heel sock. The booties are knit cuff down and the pattern is written for two-at-a-time on circular needles, or TAAT, but you can easily read the pattern for one at a time or adapt for dpns.
Have fun! They are quick!

I used two sock yarns held double, which made pretty colour effects with a self-striping and a rainbow yarn.

You could also use a DK weight yarn.

Printer-friendly pattern

I had loads of help from my patient test knitters, Nifelster, GracieB and Tescamaru, Thank You.