I bought the red/silver mylar from sparrowtraps.net a few years ago. I, myself, prefer the old rainbow sparkly mylar. I buy any I can find be it gift wrapping ribbon, bird scare, etc. I think it holds up a lot better than the red/silver stuff. I get a couple of years out of the sparkly mylar compare to just one season for the new type offered now.
When the new wears off the old shines through
When The New Wears Off The Old Shines Through.