If you have never used a Raspberry Pi it is a small computer that can be used to make many neat projects like a retro gaming console.
Instructables has a great class on learning the Raspberry Pi. This class takes you through all the beginner steps and makes a photo booth.
The main components you will need are listed below. You could use a larger screen if needed.
1. Raspberry Pi 3 Model B Motherboard
2. Raspberry Pi Camera Module V2
3. Raspberry Pi 16GB Preloaded (NOOBS) SD Card
4. Power Supply for Raspberry Pi 5V 2.5A Micro USB Adapter w/ On Off Switch
5. Sunfounder 7″ HD 1024×600 TFT LCD Screen for Raspberry Pi 3, 2
You will also need a mouse, keyboard and HDMI cable if you don’t already have those. See the Instructable for a complete list of items needed.