Halder, a European brand that makes excellent rubber mallets and dead-blow hammers, offers a magnetic holder that can be used to hang all manners of tools, accessories, and supplies.
Halder describes their magnetic holder as a multi-functional and versatile mount for [air] blow-off guns, cables, tubes, clothing, barrier tape, and much more.
The Halder magnetic holder features 6 neodymium magnets for “tremendous holding force.”
It has two zones with different diameters, allowing it to hold a range of different types of objects.
The holder has a “rugged plastic design” and “rubber-encased contact surface” that is non-marring and oil-resistant.
It weighs just 9 ounces (250 g).
There are two color options, blue (3688.002) and black (3688.003).
At the time of this post, the blue holder is temporarily out of stock, and the black one is in limited availability.
In my opinion, the Halder magnetic holder seems highly convenient, but pricey.
I don’t recall seeing any magnetic holders quite like this one, but it looks handy, and the design could be easy to adapt into DIY holders made from common materials.