Reduction frottage in a time of COVID

Teaching printmaking online during lockdown to students trapped at home with no access to printing facilities is hard enough, but having to teach reduction linocut in these circumstances takes the challenge to a whole new level! Particularly as many of the students in the class were not printmaking majors and didn't have the cash to splash on expensive tools and ink for a one-off course. With them in mind, I wondered whether it might be possible to learn the reduction technique by using frottage rather than ink. One would still need to set up the registration block, and carve away each successive layer of lino only, rather than rolling up each subsequent layer with a different ink colour, one would take a rubbing with a different coloured pencil. It seemed feasible in theory but, never having come across an example, I felt a duty to attempt it myself, if I was going to ask my students to have a go. Much to my astonishment, not only did it work, it worked really well! (Yep, I printed a copy by hand as well. With a spoon. Should have made a frottage edition!)