Hi,
here can you watch my glass bird tutorial on M2.5 mandrel for wood pen or hairpin.
https://www.youtube.com/watch?v=0uSNap91aJU (https://www.youtube.com/watch?v=0uSNap91aJU)
Shop for wood pen or hairpin: www.beachbuggy.at (http://www.beachbuggy.at)
(https://beachbuggy.at/1261-large_default/wood-pen.jpg)