Below are some videos and websites that you can check out around Te Reo Maori.
https://www.youtube.com/results?search_query=whaitiri+poutawa
Rona Poi
E Rere Taku Poi
Step by Step instructions on Poi Making
How to make your own Poi
Merge NZ & Anika Moa - Nga Ra O Te Wiki in NZSL