Perhaps there is a hobby that both of you love to do. You can use this 'theme' in your wedding invitations as well. If you both love to fish, you could use fishing line and lures for your invitations, or a hobby of wood_working could provide you with a way to expand your hobby into creating some special invitations. Regardless, if there is a hobby that the two of you share that helps to define you as a couple, don't be afraid to use it to your advantage and choose the best part of your hobby to direct your unique wedding invitation choices.
Engraved. This type of wedding invitation is usually very expensive and reserved for very formal weddings. Engraved invitations are usually used to announce a very traditional style of wedding. This type of invitation is costly because an engraver must first carve the image or message into a copper plate, ink the plate, and then push the plate down onto the paper. This creates the raised lettering on the paper. Because of all the steps needed to create this type of wedding invitation, this method is time consuming and you will need to wait weeks for your invitations to be ready. Embossed. Embossed invitations are very classy but also very expensive. Similar to engraved invitations, the raised print on this type of wedding invitation looks impressive but may be hard on your budget because of the technique used to create this type of invitation.