I normally use either mineral oil or olive oil. Both are readily available and inexpensive and suitable for food-grade items. For axe helves and other tool handles, I use raw linseed oil. When I want a darker tone, I'll apply some Restor-and-Finish walnut stain followed by a coat or two of the linseed oil.
My blog, New England Bushcraft
"Give me six hours to chop down a tree, and I will spend the first four sharpening the axe."
~ Abraham Lincoln
"Be prepared, not scared."
~ Cody Lundin
hello,
I was just looking at wood for catapults earlier. That's a fine catty you have there. I use at present Wheatgerm Oil from Holland & Barrett stores.
Regards
David
For food use (Kuksa's & Spoons) I use 100% Tung Oil. Tool handles get boiled linseed oil.