Photo Booth it up.
I. LOVE. PHOTO BOOTHS. Who doesn't? Its only natural for one of my all time #partyhacqs to be my DIY Photo Booth using Simple Booth. Simple Booth is an application for use on your iPhone or iPad. The photo booth setup uses the device's front-facing camera so your guests can touch the screen and create photo layouts or GIFs.
I stumbled across Simple Booth about a year back and have used it for my parties and work functions ever since. Once you download and install the app, set your event settings (choose a photo layout, include a logo, choose send options) and your photo booth is ready to go!