Picture of Crossbow trigger mechanism (simple but sturdy)
crossbow plans - Google Search
#bikergirl | caferacerpasion.com
Building Stairs - Google Books
Just in case you get hungry out in the wild... | How to Build a Trap and 14 other survival tips.
How to Make a knife from a 10 inch table saw blade
Like this idea. A lot quicker than mortaring the rock and easier to remove if you want to change the landscape.
Jude model knife made from a 1 3/8 wrench
It's not a sword or a knife, but...