Hand carved wooden needles, sanded til they're super smooth. 
 
Left to right - 
Oak 
Blackthorn 
Oak 
Hazel - Corylus avellana, approx. 8.5cm long, 0.9cm wide, eye 0.8cm long
Hawthorn 
 
Needles can be made in a variety of woods and sizes, so if you need something specific please get iin touch.