I have done this many times and use a thin magnet and just lay it over the face of the metal vent. 

Additionally relying on the general exemption for private placements is a magnet for attorneys should an investment go south.

Maybe paint it with that, put a little piece of wood molding underneath it to hold bits of chalk (but be careful of drilling into the wires), and sell it as a spot for family messages or a grocery list.Depending on where it is in the kitchen, maybe get some cute refrigerator magnets from the dollar store and sell it as a good place to display the kids' artwork

I've thrown out more football schedule magnets and expensive client entertainment coupon booklets than I can even count because they expired.

Pre-drilling also helps, but can be very time consuming and make sure you don’t drill the pilot hole too big.I’d also highly recommend a decent set of magnetic nut drivers, similar to this:All the best,Sam

This property in the Midwest has drawn me in like a magnet as it seems like it will cash flow real well.

I mean I used to have to go to the USGS office in Menlo park pull the quad maps.. then get my compus out and put in the magnetic declinations and then try to map out were the property was LOL. 

on coin operated machines - the issues we found on these - money is a magnet. the machines were broken into a few different times which end up costing more for repairs than the cost of a new machine - somedestoyed the machines to get quarters- now we have electronic card driven machines. no issues except for machines breaking down from being overused. 

., flat paint is a magnet for stains, scuffs, etc. 

You will become a magnet for every disreputable individual with a dangerous breed of dog out there.