Unique Baby Shower Invitation
A unique baby shower invitation could have a photograph of the mom to be on the front - which if the mom to be is more than a few months pregnant gives a graphic picture that a baby is definitely on the way.
If the mom to be already has a child you could include a photo of both and a draw an empty square next to them and put "to be added".
If you have definite planned activities for the baby shower you can always list them on the inside of the card so guests can have an idea of what to expect.
Baby clip Art is also great for designing a unique baby shower invitation. There are many places on the internet you can find this.
If you have planned the menu for the baby shower, and it is exciting, you could include it on the inside of the card.
If the baby shower is going to have a specific theme - such as Winnie the Pooh - You could draw or trace pictures of Winnie the Pooh and friends on cardstock and color them in.
One very important thing is to include the time and place of the shower.