My "small" contribution:
Some might not meet a strict definition of tools, since they are advertising giveaways, but they are a form of tool, and they are small.
First the real tools:
The 1/8" SO ignition wrench is the smallest of a full set I have, but I figured only show the smallest. The rest are just odds & ends that have found their way into my tool box over the years.
Micro pocket tools:
Advertising tape measures:
Hard to tell with the glare, but that is a quarter.
And advertising knives:
Those must be considered too dangerous (or too politically incorrect) to give out now. I haven't seen a new one in years.
And they all got together for a family portrait:
jp