This is an adorable little card. I found the template and a video tutorial at Kagisippo Pop-Up Cards. She has 9 free templates for a variety of themes at the website.
You will need a few tools to make this card, a craft knife and self-healing cutting mat, a piece of washi tape, fast drying glue, and double sided tape. The pieces can be printed out on card stock. It calls for two pieces of thin cardboard which I left out and did not feel like it was missing anything.