Tuesday's top deals: $10 headlamp, $15 hair clipper, $20 mini massage gun, more

Amazon seller: ALWOA Direct

Price: $10 with promo code LYZ3P8A4 (5/27: This is an updated code; the previous one expired)

Ever since I started tinkering with 3D printers, I've come to learn the value of headlamps like these, which make it easy to cast hands-free light on things that need checking, adjusting, etc.

This one, which is also suitable for jogging, camping and such, has a rechargeable four-hour battery, a motion-sensing on/off switch and both a hook and magnet up top -- the better to hang or attach the light when you don't want it on your head.

It even comes with a zippered carrying case. Ten bucks!

Amazon seller: Samoyeah

Price: $15 with promo code EZRCCEZQ

Whether you're still nervous about sitting in a stylist's chair or you just want to do a little touch-up grooming from time to time, this cordless trimmer is a killer deal. I grabbed one recently for Cheapskate Jr., who likes his mane short and was previously relying on a bulky corded thing.

His verdict on this: "Works great, but why does the manual say it's for pets?" Why, indeed. To that I'll add that it's surprisingly solid given the price; it has some heft. It's also waterproof, reasonably quiet and bundled with all the necessary accessories for home grooming. (No carrying case, alas.)

Amazon seller: Majiachengzzzz (no, I didn't make that up)

Price: $20 (Update: Code no longer needed)

At last count there were more massage guns on Amazon than fish in the sea. This is the latest with an impossibly low price. How does it compare with all the others? I can't say, because I haven't tested this exact model -- but I've tested many just like it. My semiprofessional opinion: It's probably pretty good. If not, hey, return it.

The massager comes with four interchangeable heads and can run at eight different speeds. It recharges via USB-C, though it's up to you to provide the AC adapter (or powered USB port).

You could pay two to three times as much for one of these things -- but I haven't yet worked out why you'd want to.

A dead ringer for one of the DJI's early Phantom drones, the Dreamer Pro costs considerably less while offering some impressive features. A big one: a 4K camera mounted on a three-axis gimbal. That results in some really sharp, really stable video.

Here's what I like about this model, which I had the chance to test-drive recently:

• It's really easy to pop the propellers on and off -- and they need to come off when you stow everything in the included heavy-duty carrying case.
• The remote actually plugs into your phone using included cables (which can stow in the remote). That's so much better than dealing with Wi-Fi pairing hassles.
• Potensic includes a 32GB microSD card for capturing video footage.
• Flight time is a very decent 28 minutes per charge.

Here's what I don't like:

• You get only one battery, and extras cost $100 apiece.
• As with so many drones like this, there's a real learning curve with the app. You should definitely study some YouTube videos before flying.
• The follow-me mode is based on the remote; you can't set it to follow, say, a person.

Those cons aside, this is a really fun model for beginner or intermediate hobbyists looking for more range, better video and so on.