I'm planning a travel/road trip themed wedding and was thinking of getting luggage tags like these and my fiance's favorite chocolate bars for favors. We'll have something like a compos or a map printed on one side of the luggage tag so it's not branded with our wedding and the guest's name and table will be on the other side so it will serve as their escort card.

Is this a useful favor or do I just think it's useful because I do a lot of traveling? Would I be better off just printing on cardstock and making it look like a luggage tag (see below) and just get the chocolate bars? I know everyone says food favors are better but do people really not mind not having a keepsake? Are there any other good travel theme wedding favors?
Re: Luggage Tag/Travel Theme Favors