Anyhoo, I decided to make my own.
He's called Heed.
Step 1: The plan, the tools, the materials
New for 2009! At no extra cost! I have re-drawn the template as a PDF file, including Mykhailo's suggestion for retaining the head. It is now attached to this step.
You can scale it up (or down!), photocopy it or draw a version yourself.
Heed can be made in paper, but will last longer if made of light card. I used the 160gsm that was already in the photocopier at school.
You will need a pair of scissors, plus a sharp knife to cut the slots that make the connections.
When using the knife, cut on either a proper cutting board or a pad of scrap paper to save your work bench.
Step 2: The Head
You need to decorate the model before you build it, unless maybe you plan to paint his features. I've gone for a very minimalist approach, and given Heed a happy face.
Note where I have drawn the face.
Crease or score all the dotted lines.
Glue the tabs, but not the three tabs that surround the lid (bottom three tabs in the photo).
Fold and fix into the box shape.