You will need
- Four (mirrored) baubles
- glue
- fairy lights
Instructions
- Glue two of the baubles together.
- Glue on a third bauble to make a triangle.
- Glue on the fourth bauble to make a tetrahedron.
- Wrap the tetrahedron in fairy lights and look into the centre.
- Read this article to find out what you’re seeing.