Make your own best friend
If you're going crazy missing your best friends, here's how you can make your own. I visited https://paperthinpersonas.com and printed out some paper dolls and clothes then stuck a photo where the head should be. There are all kinds of crazy outfits. You can either print them out in colour or in black and white and colour them in yourself. I just stuck a piece of cardboard on the back so it would stand up. You could make one of yourself and pop it in your friend's letterbox.