made this up in about 30 minutes but I cut and sewed pockets to make a second changing mat. Sadly I ran out of vinyl. I know I ended up with a lot of excess. Since I am making this as a gift, don’t have a baby, changing mat or any diapers/whipes to stuff it with I kinda had to wing it. Could you give me an idea of what the finished dimensions should be? I want to be sure mine isn’t actually doll sized or something. :D