1) Use old, discarded clothes instead of bubble-wrap or styrofoam peanuts, etc. (ICK for the environment either way you look at it.)
2) If you don’t have any, go to your local Thrift Store and get a box. Sometimes, there are even old blankets or comforters people have discarded. Explain to them what you are doing (they may even give you a discount).
3) Create a small tag/note to include in the purchase to your collectors and explain to them what you have done and why.
4) Specifically ask your collectors to take your “recycled clothing packaging” to a Thrift Store near them, donate it and spread the word.
Simple. Effective. Human.
….and kind on so many levels.