2026 Best Sellers Slime Advent Calendar

$222.00 $179.99 Save $42.01
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Only 12 items in stock!

Starting with opening the first slime on December 13th, count down to Christmas with a new slime surprise every day! This box includes 12 full-size (8oz) jars of our best selling slimes of 2026. This includes a mix of cloud dough, butter, bingsu, clear, floam, thick & glossy, and icee textures for a fun variety of slime surprises. Unwrap a new slime each day and enjoy 12 days of holiday magic! ✨

Outer box size: 5 Inches (H) x 16.5 Inches (W) x 13 Inches (D)

Please note: This box includes a few expert-level slime textures that may be trickier to handle. If you're new to slime, we recommend checking out our Beginner Box instead!

1x strawberry cow

1x cupcake icing

1x little cosmic stars

1x mermaid cookie dough

1x cotton candy dough

1x strawberry boba

1x blue hawaiian shaved ice

1x baja freeze

1x cupid's crunch

1x cinnamon toast fluff

1x crystal clear

1x smooth like butter

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ABOUT FIREFLYSLIME

Our mission at Fireflyslime is to spread the joy of slime. Whether you use slime for anxiety-ease or just playtime, we know that slime can improve the lives of so many. Since 2017 we’ve been curating and creating slimes to make life a little bit brighter and a lot more fun. Years later, this remains our mission, as does increasingly finding ways to be a more sustainable business and creating products dedicated to you and your well-being.