This is a simple spring clamp for torch light and bicycle handle bar. I have attached the STL files, there are two parts:
Part 1: Torch light clamp with two stl files, clamplight1v1.stl and clamplight2v1.stl.
Part 2: Bicycle handle bar with two stl files, clampbar1v1.stl and clampbar2v1.stl.
The metal piece I use to hold the clamps together are taken from a piece of metal clothe hanger about 2.5mm thick. You just need to bend a pair of U shape metal pieces for each clamp.
You just need to modify the clamp diameter to fit your torch light and bicycle handle bar.
Check out my other 3D printing video tips here > 3D printing videos