I took several screenshots and arranged them in rows in a Word document. I made sure to leave a tiny space between each screenshot so that there was room for a fold. Then I printed the document onto white cardstock and cut the rows into strips. I taped the strips together so that they formed one long strip then folded it like an accordion. Depending on how many screen shots you have, you may need to fold it differently. I had a lot and didn't want a two inch stack on my page so I created a fold after every other screenshot. I also had an odd number so since I was folding in twos, I had the backside of one of the screenshots on display. But that actually worked out well and it became the perfect spot for embellishment. I hope that makes sense.
I hope I get to share this page with my niece some day and that it will show her how much we've loved her since before she was even born.