As seen on Youtube, here's the Thumbsaver!
Only, a more modest version... Cheaper, too!
This is another no-brainer, that will save you a lot of grief, a nail setter, for nails, of course, and other fasteners.
It's just a question of finding some tube, and then in 4 or 5 Steps:
-And cut, (if needed)
Step 1: Materials and Tools
A Glue tube, like UHU, or any other
A Metal file,
A tube cutter, Or Hacksaw,
And a rod of some sort.
Step 2: Filing
The Metal file only has to file a V-shaped groove, like this:
Step 3: Place With Rod
Position the Magnet at the bottom of that V-Groove, with the help of a rod, plucked from the other side of the tube.
Step 4: Gluing
On the inside part of the tube, where the nails won't touch it, apply some glue.
Step 5: Bend
Then, bend it to your liking, I had this piece of tube already bent, by accident! :)
Step 6: Cut
If needed, cut the tube to size, and Voilá!
Step 7: How It Works
The thingamajig works by setting the nails or other fasteners, into the V-Groove, pointing the nail, and have at it with the Hammer, without fear of nailing your thumb.
For nails large and small, the smaller ones, remember to have the part that sticks back well positioned.