Ten glassblowers hit the hot shop to create pieces that show off their signature style. But when scale is a factor, will they rise to the occasion?

Towels and toothpaste come to life on a grand scale as the contestants reimagine everyday bathroom objects as whimsical works of pop art.

Go big or go home! As their numbers dwindle, the artists turn tiny objects into supersized sculptures — including an olive, a thimble and a pushpin.

Inspired by kids' imaginative illustrations, the glassblowers prepare one-of-a-kind pieces including a top hat-wearing snake and a flame-throwing robot.

The judges issue a surprisingly tricky challenge: create a drinking glass and decanter that are both visually appealing and functional.

To celebrate the Year of Glass, the contestants create pieces inspired by groundbreaking glass inventions, from Galileo's telescope to smartphones.

The glassblowers take cues from natural wonders with vivid, gravity-defying installations while working in teams.

Channeling their dark side, the contestants bring to life mutant mushrooms, creepy krakens and evil eyeballs for this spooky challenge.

Passions flare as the judges task the five remaining contestants with creating pieces that pay tribute to causes they care deeply about.

Inspired by emotionally meaningful photographs, the artists craft poignant glass pieces that provide illuminating snapshots of who they are.

Lollipops, gummy bears and hard candies decorate the showroom as the artists make colorful, supersized confections for a tricky treat-based challenge.

The artists employ techniques like color wrapping, hot sculpting and creating bubbles with baking soda as they craft eye-popping light fixtures.

In a surprise partner challenge, the final four contestants pair up to design collaborative pieces that explore the theme of duality.

The artists play with scale, color and texture as they bring to life botanical-themed sculptures that transcend gift shop kitsch.

Planets collide and aliens give birth as the artists conquer the final frontier: crafting dynamic sculptures that capture the majesty of outer space.

The artists design sculptures that celebrate what they wanted to be when they were kids — with pieces inspired by botanists, stunt performers and more.

The heat is on for the semifinals as contestants craft a pair of Venetian glass pieces: a quick-blow goblet and a highly detailed vessel.

Channeling their favorite foods, the contestants serve up exploding sushi in a whimsical bento box, ornate glass stands for tacos, and more.

The glassblowers put their presentation skills to the test by creating two pieces — one hanging and one sitting on a pedestal — that work cohesively.

The hot shop meets the big top in a circus-themed challenge filled with whimsical creatures, from a bearded dragon lady to a dapper walrus.

When the contestants design glass robots fit for the future, smashed sculptures and outsize ambitions threaten to crush their chances.

Inspired by the fluidity and artistic precision of dance, the artists craft kinetic compositions that capture the body in motion.

In an emotional challenge, the three remaining glassblowers create pieces that represent their greatest fears — and try out some risky techniques.

In an intense eight-hour challenge, the final two artists create two very different installations. Both wow the judges, but only one can be the winner.

Each artist designs a set of six glasses for a different beverage, including fancy flutes for Champagne and curvaceous chalices for Belgian ale. Cheers!