My brother Kevin Dean
works at a place that makes and installs fencing and guardrails. A few weeks ago he noticed some unused but beat up stickers that are used on the ends of guardrails. I happen to have an abundance of bikes...
This has been done before and there even are a few entries already for the Light Up Your Ride Cordarounds contest that work on this idea so definitely check out Wrap Your Bike in Reflective Cloth
by stupidplus and walkermount's Reflective Super Commuter