There are a few craft kiosks located at Ikano Power Centre at the Curve:
These little kiosks sell hair decorative items and are located near ACE Hardware store.
You can find various hair bands, clips, hair extensions, hair bands. There are other places like the nite market where you can get more reasonably priced items but the quality is probably not as good as the kiosk. The discerning consumer would need to do a comparison.