FIVE Extra Long Darners #1 (3 1/2 inches long)
The Edmar company has these needles made for them in Japan. They use them for bullion knots in Brazilian embroidery. I have found them to be absolutely the best needles for Japanese temari.
The gold eye makes it easy to thread. The point is extremely sharp so it easily pierces the temari ball. The shaft is long and straight so it slides through the ball like a dream. I use the #3 needle for stitching temari balls 3 inches and under in diameter. For larger balls, I use the longer #1 size.