Ok ok, I know, it is bad, do not use in commercial designs, bla bla.
I know that VCC is clamped by diodes so it's not a huge problem feeding it 5V through a limiting resistor. I can also go with a voltage divider.
What about I/O pins? There's no electrical schematic of them, just some block diagram. Can these manage 5V via a 10k-60k resistor?
I'm out of PIC10F so I have to use the lowest thing I have on hand, otherwise I have to break out the mid-range PICs and it would be a waste for a 3 GPIO project.