100 million erasable pens (82 percent of them disposables) were sold in 1982 alone. The two top movers were from Eraser Mate and Scripto - here's a look back!
Writing with metal: Stilform Aeon, an elegant, sustainable pencil in aluminium, titanium, brass and magnesium with multiple tips, edifies the conventional wooden-graphite pencil.
Unfortunately, #erasablepens can be used to commit fraud
They are apparently famous even with government officials.
You can get them here!
There’s an erasable pen that has been around since 1980s.
Exam cheating, too!
You can get it on Amazon!
It’s been done! Check out this magnetic tip pen that can write forever.
https://www.stirworld.com/see-features-the-everlasting-stilform-aeon-pencil-with-magnetic-tips-is-designed-to-write-forever
Or you can use inks and paints to suck pollutants from the air.
You can find lots of street art painted using “air pollution” inks and paints.
This genius came up with the idea of turning car exhaust into ink!
https://www.smithsonianmag.com/innovation/ink-made-air-pollution-180972212/
Already done. Check out this lab that turns carbon soot into the paint.
https://edition.cnn.com/style/article/air-ink-painting-with-pollution/index.html