For a DIY just go to spotlight and ask for 4.5m or 5m of Cotton Jersey.
No sewing, just cut it length ways in half so you have twp 70cm by 4.5m wraps and you are done, costs about 40 bucks.
Exactly the same as a HAB.

Mei tais are awesome but I find work better after 4 mths, for newborns I couldn't beat using the wrap.