Phone Number Keychain

My project is a functional and simple keychain designed to increase the chances of recovering lost keys. The keychain clearly displays the owner's phone number, encouraging anyone who finds the keys to call that number.A unique feature of this design is the use of interchangeable digits, allowing easy customization of the keychain to match any phone number. This makes the keychain adaptable for different users without the need to design a new version from scratch.The project is intended for 3D printing and can be made from durable, lightweight materials such as PLA or PETG. The keychain is compact, convenient, and visually appealing—perfect for everyday use.To ensure the digits stay securely in place, I recommend sealing the keychain’s closure with cyanoacrylate glue. This prevents it from accidentally opening and scattering the digits.