20 Best-selling toys on Amazon for less than $50

The description comes with a note to parents that reads: "Dear Evolved Parents, Kids Against Maturity is the perfect parental tool to approach playtime and family time. Are you sick of the same old dated games every game night? This instant classic was made and played by parents like you. With age-appropriate toilet humor and funny innuendos for the adults, it can be enjoyed by all ages. Best results when played with 4 players or more."

A terrarium is a miniature garden inside a container that simulates a nature environment. Your child will be able to create their own garden with this kit and watch it grow. Oh, and they can also use it as a night light. It's a great way to get kids interested in nature and growing plants.

This advent calendar is recommended for children 5 years old and up. It comes with 24 gifts, including a Christmas tree and Santa's sleigh miniature builds, six Lego City Adventures TV series mini figures, and a city play mat with snow-cleared roads.

If your child already has an 18-inch American Girl doll or you're planning on getting them one, this is a great gift idea. The set comes with eight complete outfits, two pairs of shoes, and more. Your child will be excited to mix and match outfits.

It comes with 10 different colors of kinetic sand to squish, mold, cut, and use to create. This isn't your average beach sand, it's magical. It sticks together in ways that regular sand can't and it makes building and creating so much fun that you'll want to get in on the action, too.

This educational learning toy is designed for children 18 months to 6 years old. It comes with age-appropriate learning games and is sturdy enough to handle daily use by a child. It's better than handing over pricey equipment to your child and gasping every time they bonk or drop it.

Do you remember these? Basically, you sit on them and spin. You wouldn't think they'd be all that fun, but they are! They are so fun we wish they would come in our size so we could use them throughout the day and yell, "Wee! Wee!" Instead, we suggest you get one for your child.

It's an anagram game that will drive you—you guessed it—bananas. The game is easy to play, while also being educational. Teach your kids how to spell in a fun way that helps you bond as a family. It comes in a banana-shaped carrying case and is easy to take anywhere.

The Crayola Inspiration Art Case coloring set comes with 64 crayons, 20 short colored pencils, 40 washable markers, and 15 9- by 13-inch pieces of paper. Because it is designed with a place for everything, this crayon and marker organizer helps keep art supplies for kids organized and together.

Remote control cars in general tend to be a hit with kids, but ones that do stunts are sure to impress. This particular car can be used indoors or outdoors and even in sandy conditions. It can do the basics like going forward, backwards, and turning. It can also can also manage to do tumbles and flips.

This 15-inch truck makes realistic sounds for loading, dumping and rolling. You can push the vehicle forward or pull it backward to activate sounds. When you push down the garbage lever to raise the trash bin and dump recycling in the truck, you'll also activate sounds.

You can only get this early coding and problem-solving toy for preschoolers ages 3-6 years on Amazon. It consists of one motorized head and five permanently attached segments. Each segment has a dial that kids program to determine the path for the Code-A-Pillar.

Made for anyone ages 8 to 108: "Kanoodle includes 200 logical thinking puzzles from basic to deviously difficult, there are hundreds of possible combinations, but only one correct answer. Perfect for enhancing problem-solving, critical thinking, and strategic thinking skills."

This musical mat includes 10 piano keys, eight different instrument music styles, nine demo songs, and a record and playback function. It's fun and it stimulates kids' hearing development, helps them identify colors, animals and notes. Plus, it gets them moving.

This is a twist on the classic Connect 4 game. It includes blue blocker discs that create new strategy options. You're still trying to get four in a row to win, but the new blue blocker discs add a little something different to a game many of us already love.

We'll leave it to the manufacturer to explain this one: "No limitations, scalable to build as big as desired by adding more pieces to create the masterpiece. The magnetic building block playset MINI series features 100pcs of TRAVEL SIZE on-the-go portable tiles with unique diamond shape surface to be used as a stand alone set or in conjunction with other PicassoTiles MINI magnet construction toy as integrated add-on pieces to offer OPEN-ENDED POSSIBILITIES of structures to nurture children creativity and intelligence."

Great for kids 3 years old and up. It includes 144 pieces to create a dinosaur-themed race track. The track pieces are dynamic and can twist left or right, which allows for lots of flexibility and different variations, depending on how it is put together.

It comes with eight varieties of slime and putty that include premade magnetic putty, fluffy slime, glow-in-the-dark putty, liquid slime, color-changing putty, snotty slime, bouncing putty, and one DIY glow-in-the-dark slime lab. There are also storage tins included and a learning guide to explore the science behind it all.

It's pretty self-explanatory. There are rocks to paint and decorate, but this kit says it's "The most EXTENSIVE set available, with standard and metallic paints, art transfers, googly eyes, gems, and much more!" Kids will have fun creating all kinds of art out of rocks.

It is billed as the "ultimate microscope for kids" and is ready to use right out of the box. It comes with 49 accessories and a hard-sided plastic carrying case, which makes it portable in case your budding scientist wants to take it outdoors to conduct field studies.