There is value-added for our beloved shuttlecocks that could jack up their price. I was walking along Orchard Road on my way for lunch at the Lucky Plaza when I was stopped by what I saw at a shop window for mid-market fashion accessories. The owner of the shop must be a bird-lover (of the shuttlecock kind) to have found them attractive enough to use as window displays. Might also be a badminton fan or social player.
I think those are already used shuttles. It would be a 'crime' to recycle them for warm ups after so much thought, time and creativity has been put in the process.