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- Now Booking November & December -

Luxury Slumber Parties and Stress-Free Events for the Modern Host

Puppy themed 2nd birthday party by Katie’s Party Lab, featuring a stuffed animal adoption activity with plush dalmatians and black puppies, colorful markers for customizing adoption certificates, paw print tablecloth, vibrant balloon garland, large gold number 2, pink backdrop with ‘Happy Birthday’ banner, and a white bounce house — the perfect outdoor celebration for toddlers in Erie, Colorado.
Black, pink, and yellow softball themed

I'm all about bringing people together, sparking creativity, and making childhood feel magical. From cozy sleepovers to hands-on activities and dreamy picnics, I help you celebrate birthdays, team events, or any sweet season of life.
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As a former NICU nurse, I know how much the little moments matter. Every party – whether it's race cars or rainbows – is designed to make kids feel seen, celebrated, and special (grown-up kids too).
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Less stress for parents. More fun for kids. Memories for everyone.

I'm katie,
your party bestie

I’m Katie—a former NICU nurse turned full-time magic maker, creative crafter, and mama of three. For years, I cared for the tiniest fighters and their families during some of their most vulnerable moments. That experience taught me how precious childhood truly is, and how important it is to celebrate every milestone, big or small.

I started Katie’s Party Lab with one goal in mind: to give busy parents the chance to enjoy those milestones without the stress of planning. From spa parties and sleepovers to creative workshops and our wildly popular patch parties, every event is built with the same care and attention I once gave my NICU babies—only now it comes in the form of celebrations, creativity, and memories that last long after the party ends.

Whether it’s a birthday, a backyard picnic, or just an excuse to gather friends, I’ll handle the details so you can focus on what really matters—being fully present and making memories with your child.

Katie Semenas, owner of Katie's Party Lab, smiling in patriotic sunglasses and a red, white, and blue trucker hat in front of a vibrant community pool on a sunny summer day in Erie, Colorado. Styled with bold red striped earrings and a navy top, perfect for festive family events, kids' parties, and summer celebrations.

Signature Party Options

SLEEPOVERS & SLEEPUNDERS

  • Teepees 

  • Air mattress and fitted sheet

  • Decorative Pillows

  • Throw blanket

  • Bed tray

  • LED lanterns or lights

  • Themed decor

Spa Parties

  • Mini Facials 

  • Nail Polish Bar

  • Temporary Tattoos

  • Satin Robe Rentals

  • Sparkling Cider Toast

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Patch Parties

  • Choice of Item to Patch

  • Patch Bar Setup

  • Themed Decor

  • Professional Heat Pressing Station

  • Wearable Party Favor

Paint Parties

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  • Custom Pre-Designed Canvases

  • All Painting Supplies

  • Aprons

  • Themed Decor

  • Take-Home Masterpiece

  • Delivery, Setup & Cleanup

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...and more!

PICNICS

SLIME PARTIES

Colorful outdoor slime party setup featuring a vibrtant rainbow table runner, neon mixing bowls in pink, orange, yellow, green, and blue, metallic cups, slime-making supplies, and a bold "Slime Station" sign with splatter graphics. Perfect for a sensory activity at a kids birthday party, summer playdate, or creative event for children in Erie, Colorado.

STUFF-A-BUDDY WORKSHOP

Winnie the Pooh-themed Stuff-a-Buddy party setup featuring a plush teddy bear, personalized adoption certificate, mini white T-shirt with a red heart patch, and colorful fabric markers for decorating. Includes a floral accent on a wood slice and themed signage reading "Adopt a Pooh Bear." Perfect for kids' birthday parties, stuffed animal parties, or toddler-friendly events in Erie, Colorado

Kids Table Design

Colorful puppy-themed kids birthday party tablescape with paw print table runner, pink and blue tableware, bone-shaped drink bottles, custom welcome sign, balloon garland, and white bounce house — Emma’s 2nd birthday celebration styled by Katie’s Party Lab in Erie, Colorado.

CHARM BARS

Pink ColourPop Fresh Kiss glossy lip stain tube paired with a gold charm keychain featuring a daisy, heart, pearl, and crystal bead accents. Styled on a neutral background, this aesthetic flat lay is perfect for showcasing beauty party favors, tween spa gifts, charm bar parties, or glam birthday accessories.
Elegant outdoor kids tea party setup featuring a low white picnic table with floral porcelain teapots, vintage-inspired teacups, layered place settings, and blush pink napkins. A soft pink chiffon runner, fresh flowers, and a white tiered dessert stand create a charming garden party atmosphere–perfect for a birthday tea party or whimsical spring celebration in Erie, Colorado.

TEA PARTIES

HOW IT WORKS

1

Submit Your Request

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Fill out the booking form with your preferred date, party type, and details.

2

Let’s Chat!

 


I’ll reach out to confirm availability, go over your vision, and answer any questions.

3

Secure Your Date


Your party is officially booked once the deposit is paid and the contract is signed.

4

Celebrate in Style!


Sit back and relax while I bring the magic, creativity, and fun straight to you!

Kind Words

Jennifer A.

Katie’s Party Lab created the most magical spa-tacular birthday for my daughter’s 8th, and I couldn’t be happier with the experience. Every single detail was exquisite—thoughtful, fun, and beautifully executed. It wasn’t just my daughter and her friends who were over the moon; the adults were raving about it too!

It was one of those rare moments that felt like pure joy in real time, and I know it’s a memory we’ll all carry for years to come. If you’re on the fence about booking with Katie’s Party Lab, I can say wholeheartedly—it’s absolutely worth it. The girls had endless entertainment, I got to watch my daughter and her friends glow with happiness, and I even felt like I tapped into my own inner child.

A wonderful, joy-filled experience from start to finish. Highly recommend!

SARAH F.

Katie was absolutely wonderful to work with! She helped plan my daughter’s sleepover birthday party and was flexible and accommodating with changes along the way. The final result was fantastic—my daughter and her friends had an unforgettable time! I highly recommend Katie to anyone looking for help planning their next party.

Mikaela G.

Absolutely worth it!
I love the big celebration ideas but then spend weeks stressing to make it all happen, only to be disappointed. Working with Katie was the best decision ever. Katie did all the work, all the planning, took away all the stress. She made things easy, went above and beyond my plans and expectations, and the kids loved it all. This will be my party go to from now on for sure!!

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