If you are into scrapbooking you can create some awesome scrapbooking wedding invitations. The first thing you need to do is download a free template.
Then you need to think about a design. I would suggest you opt for cardstock to match your wedding color scheme. Then use wedding die cuts in white or black, of a bride and groom, wedding bells, doves or interlocked wedding rings.
Ribbons or thin strips of paper can be used to make a border. If you have a theme for the wedding, perhaps an ethnic or religious theme, you can use stickers or die cuts to suit.
For an Irish wedding, a shamrock or Celtic cross die cut would work well. You can go on line and search for an Irish wedding blessing.
If you have a lot of invitations to make, gather the bridesmaids, friends and family and spend an afternoon assembling your custom scrapbooking wedding invitations.