Help: Baby Shower Invitations

Alright - a little help here please? I am planning a very low-key baby shower for a girlfriend & am in need of some invitation help. The mommy-to-be mentioned that we should just send out an "evite" for the shower...my co-organizer & I said absolutely not! So, the idea is for something simple, inexpensive, and cute. I think we are open to any ideas - craft can count! Would love the input.

[image (which I think is sweet, but maybe a little too sweet for the mommy-to-be): Emma Rose Papery]