All my I.D. still shows my ex's last name. I simply sent the invites out in my maiden name. Everyone that knows you well (which is probably your entire guest list!) knows your maiden name!
You are the one that makes in invites... It's completely fine to use your maiden name
My last name isn't on my invite. Bride's 1st and Middle Name, FI's 1st and Middle Name invite you to our wedding.