Three DIY enrichment builds that fit into a weekday routine, from an egg carton puzzle to a fleece tug you can wash.

The egg carton kibble popper (and how to scale it)

I keep one clean cardboard egg carton in the pantry because it makes a stupidly good puzzle feeder for a dog who eats like the bowl owes him money. Here is the whole build: open the carton, drop a few pieces of kibble or a couple of training treats into 3 to 6 cups, then crumple clean, plain, uncoated paper with no staples, tape, plastic windows, or other attachments into loose balls and press one ball into each filled cup. Close the lid. That is it. The first time you hand it over, you want to be there. One dog might paw at the carton carefully; another may tear into it like demolition is part of the assignment. Mine has also tried carrying the whole thing to the rug like he was planning a heist.

The fun part is how easy it is to scale without buying anything. For beginners, leave the lid open and cover only two cups at a time so they learn the point quickly. For a dog who has already figured it out, close the lid and tuck the carton flap securely into place. Skip tape, staples, or other fasteners that could come loose during play. If you need it harder, tuck a second paper ball under the lid so it presses down on the cups a bit. If you want a less frantic version, use larger treats so there are fewer crumbs scattering around the carton.

A few notes from doing this on repeat: skip glossy magazine pages because the ink can rub off, and the paper gets slimy fast. Also, if your dog is the type to shred and swallow cardboard, this is a supervised-only toy, not a set-it-and-forget-it situation. Mine will spit the cardboard bits out like confetti, but I still pick up the scraps right away so it stays a food puzzle, not a snack.

Fleece rope tug from an old throw blanket

If you have a fleece throw that has gone weird (pilled, static-y, or just permanently shaped like your dog), you can turn it into a simple homemade tug that is soft, washable, and easy to replace. Check the finished toy regularly for loose or fraying strips, and retire or re-braid it when the fabric starts coming apart.

I make mine the same way every time: cut three long strips, roughly 2 to 3 inches wide, and aim for about 3 feet long if you want something you can grip without sacrificing your knuckles. Stack the strips, tie a tight overhand knot near one end, then braid them like hair. When you get to the bottom, tie another tight knot. If you want handles, fold each end back on itself before tying, so you end up with a loop you can hold: no hardware, no squeakers, nothing to crack a tooth on.

What I like about this one in a daily routine is that it can do double duty. In the morning, it is a quick game of tug with rules: I ask for a sit, I cue “take it,” and I trade for a treat to practice a clean “drop.” Later, when I have a spare minute, I’ll use it for another short, controlled tug session, keeping his feet on the floor and letting him set most of the pulling pressure. Then I cue a drop, reward him, and put the tug away.

Two real-world cautions. First, this is not for unsupervised chewing if your dog likes to swallow fabric. Loose fleece strands can become dangerous if swallowed because long, string-like material can cause an intestinal obstruction. Second, if the braid starts to loosen, cut it up and re-braid it. The moment you see long tassels forming, your dog will notice too, and then you are playing “how fast can you eat a shoelace,” but with fleece.

The cardboard box “find it” grid for scent work

This one looks like nothing until you watch your dog’s brain switch on. Grab a medium cardboard shipping box, then save a handful of toilet paper tubes or paper towel tubes cut in half. Stand the tubes upright inside the box like a little city skyline. If you have enough tubes to pack them tightly so they don’t tip over immediately, great. If not, crumple a couple of sheets of plain paper to use as fillers. Now hide 5 to 10 treats inside random tubes, then set the box on a hard floor.

I don’t make a big speech about it. I just set it down, point once, and say “find it.” Most dogs start by shoving their whole snout into the first tube they see, then get more careful when they realize precision pays off. You’ll hear the hollow thump-thump of tubes knocking together and the little scrape of cardboard as they reposition the box with one paw. It’s messy in the way recycling is messy, not in the way peanut butter is messy.

You can change the difficulty without changing the materials. For a dog who is new to nose work, use stinkier rewards (freeze-dried beef liver is basically cheating) and keep the tubes sparse so the treats are easy to locate. For a dog who is getting good, hide fewer treats and move them among different tubes so the search stays challenging without becoming frustrating. If your dog starts grabbing tubes and sprinting off, that’s not “bad.” It just means you need a heavier box, tighter packing, or a quick reset where you trade the tube for a treat and put it right back in the grid.

Safety note from experience: keep an eye on any dog who wants to shred and swallow cardboard. A little supervised shredding may be part of the game, but take the box away immediately if your dog starts swallowing pieces. When the box gets soggy or starts shedding little flakes everywhere, retire it. The nice part is you can rebuild in two minutes the next time you have a delivery, which is, honestly, always.