Last year I received a not so good multiitool. Its parts were very loose, its knives were so dull it didn't even have an edge, and it collapsed when I use it. So I decided to make it into something better, a pocket knife. This project was fun because I got to customize and tweak the parts into what I wanted.
Step 1: List:
1. one junky multitool
2. small saw (from great quality multitool)
3.metal file (one for small spaces and one large one)
5. knife sharpening device (oil stone or I used a pampered chef knife sharpener)