I didn't add any borders to this keychain but you can if you like and it will make the keychain a bit bigger.
You can use any size template you like and use any quilt block you want to to make these keychains. There is no specific size they have to be. So experiment and make all the keychains you need.
Next Friday I am going to show how to make a mini Bear's paw for a keychain and a mini Trip around the world.