This blouse isn't actually recycled. Productions that require more modern looking clothing are usually purchased rather than made. It is most likely that both costume designers for the television show Firefly and for Eternal Sunshine of the Spotless Mind just happened to choose the same top.
This top from Firefly went up for auction at The Prop Store of London not long ago, but is now either off of their website, or has sold. However, you can find many other Firefly items under their Serenity listing. The top from Eternal Sunshine of the Spotless Mind was also purchased after production ended.