Building a Halloween item this year and all you have "in stock" is a pallet full of cheap clear lights you got years ago and what you need is those expensive purple and orange lights? Problem solved - and cheap and easy no less. We've provided a write-up on how to do this on our website here: http://www.holidaycoro.com/docs/Tinting%20Clear%20Lights%20to%20Orange%20and%20Purple.pdf