The three cheap gadgets ZDNET readers are buying nonstop (no. 1 is weird)

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Presidents' Day is here, and it's a great time to grab cheap, functional, and yes, even weird buys.

Also: The best Presidents' Day deals so far

We gathered data on all the products our readers bought the most in the last few days via links in ZDNET reviews, buying guides, deal posts, and other content on our site. The following are the most popular items purchased by thousands of people, listed by the number purchased (note that your privacy is protected; we only have access to aggregate data from our user base, and there is no way for us to identify individual people's purchases).

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These are the three oddest gadgets that readers have been purchasing the most leading up to Presidents' Day, and some of them are even on sale.

Three gadgets ZDNET readers are buying the most for Presidents' Day

I've said it once, and I'll repeat it: It's unclear to me why this tool remains one of our readers' favorite products, but it's recently dropped in price and is perhaps too good to pass up. While this handy ear camera used to sell for around $14, now you can get your own for only $9. Our resident gadgeteer, Adrian Kingsley-Hughes, loves his for tinkering, but you're totally welcome to use it to check out your ear, too.

Also: The weirdest tool I own is also one of the most useful

This was an impulse purchase during October Prime Day because I was convinced it had to be better for cleaning AirPods than using Q-tips. And now my knowledge is your knowledge. This AirPods cleaning tool has a 4.5/5 star rating and over 10,000 reviews, so at least others agree with me.

Also: Your AirPods are gross. Grab this $7 tool to keep them clean

It's dual-ended, with a soft bristle tool on one side and a sharp scraper and a small brush combo on the other. It does its job and is handy. Would buy again.

I did say in the headline that these gadgets were weird. The Heat It bug bite zapper is clearly not the exception.

Also: This USB-C accessory gave my iPhone and Android a surprisingly useful functionality

Heat It is available in USB-C or Lightning adapters. It plugs into your phone and delivers a warming zap that's supposed to quell itchiness from bug bites. Expert Adrian Kingsley Hughes says it could make a difference if you're an outdoorsy person, and as someone who also owns one, I can confirm that it works. It's still weird, though, to be clear.