The autistic kid that helps out at work was apparently sperging over a slide-cutter prototype I brought in to demo. This made me realize it may also be of interest for kiwis. We have several dozen different 24-36" rolls that move between about a dozen fixtures like this:

We are cutting thousands of the exact same length for holiday shopping and some of our less strong or vertically challenged personnel struggle to have the right girp to tear cleanly. Supply houses make slide cutters but you have to sort out your own mounting, which would mean one for each of the dozen stations. At $450/ea it's a steep fucking price. I'm looking at a profitable, deliverable product for <$100 that can be mounted to any of our holders:

I just got the length of 1x1 I intend to use as the rail for the final product, $50 and half was delivery since it was overlength. That carriage and dozens like it will run you less than $15. That X-acto knife that they're actually getting from me over my dead body is another $15 with blades. I intend to make a blade holder that bolts on to do the same thing for $2 max. I'm going to embed magnets in the velcro mounting-straps/end caps since the roll wipers it'll mount on are steel. I'm waiting on BigBoss's approval when they stop by tomorrow before I commit any components worth more than the maybe nickel's worth of lock-wire pictured.
Edit so you may learn from lessons I am learning the hard way: apparently the 2020 all the bugman ads mention is 20mmx20mm which anyone that knows their conversions will tell you is 5mm shy of the nice, sleek, 1"x1" rail for the final product. Meaning: all of my 2020 carriages are too narrow and the proper fix is to buy a new one. But I am the human here and I have more machines than the one I'm creating. Powered up the clapped out drill press with the shrieking bearings, grabbed the cup of sacrificial drill bits for the right size, and blasted the screw holes into slots to make it fit. Stupid like a fox!