I just stumbled across this DIY adorable matchbox announcement here at this cute site Little Window Shoppe. The matchboxes could be personalized and even used for a baby shower announcement too. I'm sure it could be done for such events like:
:: bridal shower announcements :: wedding reception favors :: general party favors
I'm going to keep a note of this one as I'm sure they will be perfect for some occasion. For the tutorial click here.