My favorite is a little jasperware bowl I found in an antique shop. It’s just the right size for a ball of sock yarn, and I rarely work with anything larger. Notice that the sides are fairly vertical rather than gently sloping outward and upward. That makes it extra good for use as a yarn bowl because it’s hard for the yarn to slide up and over the sides.
Colanders with larger holes can be a great option for a yarn bowl. You can feed the yarn through the holes in the colander, and it will act just like the holes in the side of a yarn bowl. You’ll want to choose a colander that has some heft to it so it can counterbalance the force of you tugging on the yarn, so go for a heavier metal or even ceramic colander. Make sure, too, that the holes in the side of your colander are smooth. You don’t want a jagged edge damaging your yarn.
Now this might sound strange to you, but hear me out. What’s a teapot’s defining feature? Its spout. And it turns out the spout of a teapot is great for feeding yarn through. A teapot is heavy enough that it can hold the yarn in place, and it’ll usually have a lid, too. On the other hand, if you find a lidless teapot at a thrift store, most people want want it for a teapot anymore so you might be able to score a good deal on your new DIY yarn bowl.
A lot of knitters and crocheters like using project bags, and with good reason. They keep your yarn, pattern, and notions all corralled in one place. But the other benefit is that a project bag can act like a yarn bowl. If the bag is made of a heavy enough canvas and has a drawstring closure, you can feed the yarn through the small opening and contain the ball of yarn that way.
Finally, I love a good basket for use as a yarn bowl, but I’ve learned the hard way that a basket without a liner isn’t the best choice. That’s because the basket material often has poky bits that can snag your yarn. For the smoothest yarn control experience, I recommend a basket with fairly high walls and a cloth interior that will protect the yarn from catching on twigs or splinters.