Basketry Supplies-
Here are a few supplies I work with regularly:
Gina’s Baskets
https://www.ginasbaskets.com/

East Troy Basketry
​https://www.easttroybasketry.com/

The Country Seat
https://www.countryseat.com/

Woven Blessings 
https://wovenblessingsbasketry.com/

There are many more resources and shops online, but these are my go-to shops.