First i thought they might not be ... after applying heat to the sides of it,they become strong enough and rough edges have gone. u can make more then 3 bangles using one plastic bottle (may be more depending on the width ). Thanks for Watching :
by ThePatterfamily
by See & Do
by Pins and Things
by ArtsFromHeart
by Rangoli designs with colours //
by Easy Art
by Tuteate