Knocked up this simple test header when I had only 2 channel scopes and for times when your probe hook was too big to connect to items of interest. It allows multiple connections to be bought to 1 point, a safety feature when working higher voltages and also negates the need to power down the DUT once you've connected all your points of interest.
The cheapy grabbers are ok for simple connections to DIP's, TO-92, TO-220's etc.
Made from a short strip of 10mm Phenolic switchboard panel although any plastic or acrylic would be perfect too. Recessed holes are large enough for either the probe reference lead or the grabber hook to be attached to the recessed loop. Cable is tinned and formed to a loop for probe grabber hooks. Either a drop of glue or a tight fit secures cables.
The colour coding on my block was done with high-lighter markers and they don't all show up too well on the phenolic, acrylic would be better.
Anyway, simple to make and handy at times.