If you split your own firewood by hand, a Fiskars splitting axe is insanely better than any standard splitting maul you'd find in a typical hardware store: https://www.fiskars.com/en-us/gardening-and-yard-care/produc... For mechanical pencils, the Rotring 600 is the best thing I've ever written with: https://www.amazon.com/gp/product/B00AZWYUA4/
For splitting wood, I now always use this: https://www.amazon.co.uk/Ochsenkopf-OX-3509-Log-Splitter-Rot...
Now THAT is really good design.