The basic principle is two crocodile clips held up in the air.
1- Cut a square of wood
2- Drill two holes
3- Screw two large screws through the holes
4- Glue screws in place
5- Duc-tape underneath to stop scratching
6- Solder 2 crocodile clips to the tops of the screws
7- Put electrical tape around the sides because it looks cool :)
Thats it !
They took me about 5 minutes to make and were really useful when i was soldering.