Lab power supply to breadboard
Nothing great.  For breadboards with female bananas binding posts on them, you just run the wire to a bus.


https://cdn.sparkfun.com/assets/4/e/b/7/3/518c07b8ce395fea62000001.jpg

Otherwise, Male banana to test clips are probably the best bet/


from www.apogeekits.com/images/banana_to_grabber_leads.jpg

The latter are not extremely robust arrangements, but solderless breadboard circuits, in general, are not the most robust of prototypes.