Just spotted this idea on a Guitar forum....This guy uses A Brazil Nut to liven up his fretboards..He also says wallnuts are ok as well....It's cheaper than buying the oil in bottles and you can eat whats left over
Funny as a biker being active on a few V4 sites many there talk about how peanut butter will bring the black back to plastics. It also does a hell of a job at removing sticky label adhesive.
Can nut oils go rancid unlike good old petroleum based lemon oil?