Gemma turned five this week!  Because she has a summer birthday, we always celebrate outdoors by grilling with friends and family and playing yard games.  Gemma also gets to pick a fun theme for her birthday party, and this year it was Mickey Mouse!  I love planning themed birthday parties, but they can get EXPENSIVE.  Luckily, the simple design and easily identifiable features of our favorite mouse made DIY-ing a variety of decorations and treats a breeze.  Follow along as I share ways you can DIY a Mickey Mouse Themed Birthday Party along with some free printables! * This post contains affiliate links. If you click on a link and…