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An open STEM subscription box showing contents including density experiment for kids
Monthly Subscription: Messy Play Kits - Monthly STEM Kits Subscription
Child holding a pipette while looking at a bowl of bubbly liquid from his kids science subscription box kit
Young girl using a pipette to drop liquid onto a science experiment on a blue tray
Child pouring a mix of white and colorful material onto a tray.
A kid's hands squeezing and stretching an orange slime
An excited girl opening her "Under the Sea" themed STEM subscription box from Messy Play Kits
A child's hand using a pipette to drop citric acid onto a snowman made of baking soda paste for the Fizzing Snowman activity from the Winter Wonderland kit
White apron with colorful splatter design and text reading "Professional Mess Maker" and ""

Monthly Subscription: Messy Play Kits - Monthly STEM Kits Subscription

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Subscribe now to begin receiving Messy Play monthly STEM kits! Messy Play Kits is a STEM box subscription for preschool and elementary kids. Your first Messy Play Kit will arrive around the 10th of the month after you sign up. Order now before next month’s box is sold out.

Each Messy Play Kit comes with materials and instructions for 3-5 activities, and are designed for children ages 3-8. They also come with an affiliated website with detailed photo instructions, educational resources, and extra ideas for play! The activities are great for outside play during the summer months when you're looking for something to do, or when you’re stuck inside for the winter, quarantining, or distance learning. Monthly STEM kits for elementary kids and preschoolers teach concepts like spatial awareness, cause and effect, color mixing, animal habitats, and material properties through simple chemical reactions and fun creative activities. Satisfy curious minds with a kids science subscription box packed with new experiments and themes each month.

To see a full list of the kits and activities included in this STEM subscription box, visit the Kits page.  The order of the kits is a surprise and will depend on when you sign up. (Note: Recently 12 NEW Kits have been added to the lineup that haven't been added to that page yet- extra surprises!)

Add an adorable "Mess Maker" apron for just $10! This will ship with your first box, and is custom made for Messy Play Kits by SoMi Craft Boutique! That means your first month would be $54 (kit and apron), and subsequent months would be $44 (kit only).

Order before the 1st of the month to receive that month's box. Boxes ship on the 8th of each month (or the closest business day) via USPS and arrive within 1-5 days. For future months, you'll be billed on the 1st of the month and can cancel anytime. If you prepay, you pay for the entire subscription upfront and will receive a box for each active month of your subscription.

All kits are for ages 3 and up, and contain non-toxic, washable materials.


Customer Reviews

Based on 16 reviews
Beth Unger
Expertly Curated Kits!

My 3 year old daughter and I loved exploring our “Outer Space” kit on a snow day. I appreciated that the kit includes color-coded materials and instructions for each activity, along with easy STEM talking points and questions to discuss while you’re doing the activities. The activities are thoughtful and quick to keep a toddler’s attention but also open-ended to encourage their exploration and curiosity. I also love supporting a mom’s small-business and mission to encourage messy play!

Lauren Mikol (Kayla Stutzman)
Perfect for busy toddler twins

(Written by Lauren’s daughter, Kayla). My mom got an annual subscription for my twins that turned 3 on Christmas Eve for Christmas, and they LOVE IT. They get very excited for “science with mama” when each kit arrives. I can see this being a special monthly activity for us for a few years. Will definitely be renewing after this first subscription is done!

Amanda W.
A perfect gift for family to spend time together

I gifted my nieces a Messy Kits subscription in December 2019 as a way to bring them together for a fun activity each month that was screen-free and collaborative. Little did I know, they'd be spending so much time at home soon enough! The girls absolutely loved them, and even saved a few for when I was finally able to visit. At ages 6 and 3, they were so excited to "unbox" the kits each month, and they've saved the reusable materials to recreate the fun over and over again. Thank you, Messy Kits!

Elaine Reno
Really enjoy it

I love messy kits!!

Super fun for the whole family!

We love the kits! My son is 6, and my daughter is 4. They actually get along sharing the ingredients and they love making a mess! But it's really not that messy, everything is washable and cleans up easily. I love that it's non toxic and safe! They loved the pipettes with colors, bath fizzies, oobleck, marble painting, etc!