These cards are a bit fiddly to make so not ideal if you need a lot of cards but if you’re only planning to make a few they’re ideal.
All you need is some coloured red card, white paper, scissors, double sided tape or glue and a black pen.
Here’s a template of the basic shapes you’ll need
Start by cutting the pillar box shape from red card and attach to your base card, next cut some snow shapes and for the base and top of the pillar box and a letter shape all from white card and glue in position.
Then using a black fine liner pen you can add the detail.