They are also surprisingly low-cost, so it's almost as if the hands-free functionality of them is for free, if you need to buy a second set of probes for a 'scope anyway. The going rate here is £39 for the 100 MHz version, which is often more than sufficient for capturing various typical serial interfaces on boards as an example. The photo shows I2C being probed on a QFN chip.
The steel base can be DIY'd, to save purchasing that, if desired.
Since they look a bit delicate, storage needs a bit of thought (I didn't wish to disassemble the probes to put them back in the supplied flexible pouches), one possible solution to allow storing them fully assembled, is shown in the attached photo (the plastic case can be placed in any orientation and the tips do not touch anything).