Have not played with the following and found the sample in one of the badminton halls I frequent.
Not seen the brand in the local shops in my area.
Blog to show the internals of the shuttlecock used in the game of badminton.
Includes feedback on the shuttlecocks utilised, based on personal experience with them. Speed of shuttles is 77
UPDATE - New poll for your favourite brand of shuttlecocks as the previous poll was completed in 2015