Some cool Testing Capacitors Circuit images:
LED Animation Test
Image by somebox
Test circuit using a CD4046b oscillator and a hcf4017 counter/divider chip. Basically, it cycles through all the LEDs and you can adjust the speed/accelleration with a single connection.
op amp
Image by wgossett
testing first, then going to solder
miniSADbot026
Image by dustynrobots
Test circuit