If you follow the link in the sig you will see what he is trying to do ....
For the plant labels perhaps try either linceed oil or danish oil .... one coat will offer some protection. For the wedding labels try the shellac. I have recently made some little price tags and used a single coat of danish oil and they came up well. There is a photo on the forum from a few weeks ago .... try searching for "marking your work" or something along those lines.
Good to see you having a go and I wish you the best with your business venture.
Found the link:
http://www.woodworkforums.ubeaut.com...9&d=1193996809