At the time I started taking these photos I didn't yet have Photoshop so I had to purchase Monthly Onesie Stickers which I found at that Purple Possom etsy shop. And, it looks like the ones we used are currently on sale. The backgrounds I've used were either a yard of fabric I picked up from a craft store or something I had around the house.
We pulled all of these pictures together and put them together on a banner at her birthday party to show off how much she has changed since birth. We really think she'll enjoy these pictures as much as we have.
NOTE: The key to keeping your baby from moving is one person taking the photos (me), and another person keeping them entertained just above your head (the husband) along with a handful of puffs!