Some of the last discussions were knives. I picked up those rolling knife sharpeners for around $40 and they work decently good. Basically it's just using a diamond plate vertically vs horizontally.
Something like this:
https://www.amazon.ca/Sharpener-Roll...s%2C151&sr=8-7
I still like whetstones better, and I kinda find the amount of passes with the rolling I need to do a lot because the pressure isn't as high. The rolling sharpener can only do shorter knives, so certain naikiri or cleavers can't be done with it. But for a complete newbie/moderate user of knives, this is great set for basic knife sharpening vs those ceramic pull sharpeners.