Midget Spanners

They're cool for hobbies. They can relieve stress too by spinning them on tables, tossing from hand to hand, etc.

http://www.mytoolstore.com.au/categories/Hobby-Tools/MIDGET-SPANNERS/

 

You could also throw one in the works - of something small - if you wanted to cause disruption.

 

more commonly used on older engines with points type ignition systems

on my side of the planet they are called ignition wrenches