I was about to suggest making petite envelopes! but I see that you've found some cute map ones.
I like making my own little envelopes or bags to put my stuff in, then tying a bow with twine or ribbon, attaching my handmade tags and placing it into a bubble wrapper, or a box if it's a larger item
it looks cute and keeps your items safe.
Here's an example of one of my larger envelopes.
http://www.flickr.com/photos/lasantamuerte/6097228069/in/photostream