Do jellyfish really produce jelly?

I was watching Spongebob Squarepants the other day and Spongebob was able to more or less “milk” the jellyfish for jelly. 2 part question.
1) Is that possible?
2) How would you do it without getting stung?

1) Only in Bikini Bottoms.
2) Well, since Spongebob is a sponge, all that electricity just absorbs in him! So he’s the only one who can really do it!

SpongeBob SquarePants – JellyFish Jam

SpongeBob SquarePants Purple Metal Snack Box Tin Tote $7.95 SpongeBob with jellyfish “Wonders of the Sea” design tin tote…

Spongebob Squarepants & Purple Jellyfish Metal Lunchbox Lunch Box Spongebob Squarepants & Purple Jellyfish Metal Lunchbox Lunch Box. This officially licensed metal lunchbox measures approx 7-5/8 x 6 x 2-3/4″H inches. Great gift for back to school, also perfect for storing small toys, figures, etc….

The SpongeBob SquarePants Movie: Music from the Movie and More… $2.88 There’s an ocean of reasons Nickelodeon fans and moviegoers will want to own the SpongeBob SquarePants Movie soundtrack, not least of which is its cover art. Even if such aesthetic considerations bore you–even if the movie itself bores you, you’ll want to dive right in, because the packaging pales in comparison to the content. Skate-punk queen Avril Lavigne cranks up the guitars for a caffeinate…

Brewster 147-71157 Nickelodeon SpongeBob Jellyfish Wall Mural $83.28 Your adorable pals from Nickelodeon frolic through these pre-pasted wall accents. Bright and colorful, these giant Wall Murals allow you to highlight your kid’s space. The four panels are easy to install, just wet and apply to any flat dry surface. The product’s vinyl surface cleans quickly with simple soap and water. Bring home all these Nickelodeon Wall Accents to help decorate your kid’s room. …

Spongebob Jellyfish Wall Border This is the easiest way you will ever accent your room! This simple prepasted border is safe for your walls and will leave no damage or residue on the surface. Much easier than traditional borders. Best of all, it’s completely washable AND strippable. This sale is per SINGLE pack of border. Each pack/roll measures 15′ (fifteen feet) long and 10″ wide. Great for apartments or rooms where traditio…