Quick sheath from recycled plastic

I picked up this knife at a yard sale for $2.us, its stamped china, I figured it would make a good work/yard knife but the sheath left a lot to be desired. I think it's supposed to strap to your forearm but there's no way it would fit me. Here's my alternative...

Step 1 Supplies and tools

the supplies and tools are fairly simply, the plastic is from a recycled plastic sourcream container, I used a marker to trace the shape I needed, a razor knife for the cutting and a cigarette lighter and soldering gun for "welding"