I've used Three Little Birds a couple of times. As the Maid of Honor I was overwhelmed attempting to plan two bridal showers and bachlorette party all while packing up for a move. I found Three Little Birds and a smattering of other companies that specialized in creating invitations. The bridal showers were 4 weeks apart from each other and I had bought invitations to one with recipe cards on-line. Loved the recipe cards and the box, hated the invitations. I went in for 30 minutes on a Friday afternoon and showed them the recipe cards and envelopes and told them what I was looking for. The other bridal shower I had an idea of what I wanted and they worked with me. By Wednesday I had the proofs. I still had to wait to OK everything since I didn't yet know a location and specific information. I called them up and explain the situation. They were more then happy to work with me and I gave them the things I did want to alter. After I found out all the information and authorized the proofs, I had the invitations and envelopes within a week. They saved my butt.
Because of that great experience I went back and had them make the custom invitations for the bachlorette party. I wanted to do stick figures that resembled the bride and bridesmaids. I had sent them pictures of the bridal showers to get the hair type and color down. When I got the proofs a few days later, I was over the moon when they did flattering detailed portraits of all of us for the invites.
Needless to say, the Bride made sure she got copies of all the invites for her scrapbook and loved them all.
If I ever need anything else, you best believe I'll be going back there! The ladies here are AMAZING. As long as you have a clear idea of what you are looking for they were execute seamlessly and the final product will be better then you thought without breaking the bank.