A frame - I found mine at Michael's Craft Store. They will have one-offs they cut and fit in house. They are usually expensive frames, but there is an error in the sizing. The wood used to frame the one I bought came from Italy. With a coupon, I got it for $6.00
Embellishments - If you want to label your frame as a bucket list, head to the scrapbook aisle and select away! I also used tiny clothespins, which I've had for a previous project in the boys' rooms.