most companies are very discrete when dealing with sensitive material and i know for a fact fs books are one of these...years ago, before the net even, i ordered and received mel & ed's spiral edition grow book and it came fully covered with no hint of what's inside and a neighbor recently ordered cervantes' book and they still use the same method.

just pick a reasonable and sensible company name and add it to your box. adding several will only raise eyebrows and you can say you're getting involved with ebay selling and buying if they ask any questions about your new biz name on the box and they might think it odd you coming in asking to put another name on the list when that person could have just as easily done it. set up an email account with same name and shop it around at various sites that mail catalogs and other free stuff and if you do ebay, set up an account there and start buying stuff to be sent in that name to that box.