Amazon offers Goody Ouchless Tiny Terry Ponytailer 42-Pack for $1.39. Add it to your cart via Subscribe & Save to drop the price to $1.32 and bag free shipping. That's $0.03 per ponytailer and the lowest total price we could find for this quantity by $13. These ponytailers are suitable for all hair types.
Note: Be sure to cancel Subscribe & Save to avoid being billed for subsequent shipments.