Ten second's inspiration, and twenty minute's work later, I'd saved the teacher a job.
Step 1: Materials and tools
- Mug - any old mug will do, preferably plastic in case of accidents.
- An old drink-can.
- Something sharp to cut the can.
- Some polystyrene packing (from under a frozen pizza).
- PVA glue.
- Cocoa powder.
- Something to stir the glue.
- Hot-glue gun.