Wired magazine have an article on a “Laser Fault Injection” tool for using lasers to change logic in microchips. It based on and OpenFlexure, it seems to be a little laser module in the epi-illuminated OpenFlexure. I don’t see any other modifications except for the complex FPGA stuff for the lasers:
It’s really cool!
Laser beam poking right up into the air. Does seem like a good tool for blinding yourself. 
Don’t forget the laser goggles 
otherwise 
Interesting that they mounted heat sinks on the stepper motors.
In practice they get extremely hot. With better current control and smarter power down modes, it should be possible to make it better, but I wouldn’t run these without a heatsink anyway.
We never use heatsinks, and we have not felt that the motors get particularly hot. My conclusion is that the operating point is close to where we as humans feel a particularly big difference between ‘warm’ and ‘too hot’. As things go above body temperature people start to notice. A few degrees difference in room temperature, slight differences in motors etc give a small change in temperature but a big change in perception. On top of that, for a particular temperature different people have a different perception.
Heatsinks will certsinly not hurt. I ought to do a test on how much difference they make to the temperature.
A while ago I measured the temperature of my Y motor to be 43C/109F, with the X and Z motors around 33C/91F. So while hotter than I expected, nothing too concerning I guess.