Neptune the Pineapple Crab | reversible amigurumi pattern


This listing is for is a crochet pattern, not a physical product.  Scroll down for pattern details and more info.



Neptune masquerades as a pineapple, which of course is the perfect front for an undersea creature because anyone who happened upon him beneath the waves would probably just assume it was Spongebob’s house and move on, never suspecting a secret, jewel-collecting crab inside.

Neptune scours the ocean floor for shiny pirate treasure to hoard and keep safe inside his beautiful shell. He can often be found holding up a sparkling gem between his pincers, inspecting it by the beams of light cutting through the water.



This pattern is part of the Projectarian’s Year of Fur event and part of my new Smuggle-Tuck Pets pattern series.

Neptune is a reversible amigurumi hermit crab that flips inside out to become a pineapple. The shell lid and pineapple lid are both removable and, depending on which way it’s flipped, can be stored inside the shell or the fruit. Alternatively, you can stow secret treasures inside your Smuggle-Tuck Pet or pack it with undersea friends like Hubble the Squid and Wishing Starfish (both of which are free patterns on my website).

The pattern includes tips on how to make your pineapple without fur and how to make the shell in one piece on its own.

Find out more about Neptune in his blog post here.
More about Projectarian’s Year of Fur and other furry projects here.
Watch a video revealing my hacks for easily crocheting with fur yarn here.
Get forum-style help from the Projectarian community here.

I hope you enjoy this project as much as I enjoyed designing it!



  • 50 page pattern with written instructions and 400+ pictures
  • Detailed supplies list including yarn quantities, tools, skills, and any other supplies
  • Free bonus Booklet: Projectarian’s Pro Tips for Amigurumi
  • Forum-style support from a network of Projectarian pattern users.


The pattern contains minute detail on choosing supplies and everything else you need to know. The following is an overview of yarn and other info.


Yarn #1. Double knit, which is the equivalent to yarn weight 3, light worsted, 8 ply or 11 wpi. Choose yarn that has a weight similar to 2.6 m/g.

Yarn #2. 4 Ply, which is the equivalent to yarn weight 2, fingering or 14 wpi. Choose yarn with a weight similar to 4.2 m/g, or that is 1 weight class below your main yarn.

Yarn #3. Fur, which often doesn’t have a weight listed on the label such as DK, aran, etc. Use any fur yarn with a weight similar to 1.2 m/g for this project.

YARDAGE: total amount = approx. 375g

FINISHED SIZE: 26 cm wide X 15 cm tall

TERMINOLOGY: US terminology with metric sizes.


Although it is rated as advanced, I’ve written this pattern with lower skill levels in mind. The pattern has been thoroughly tested to ensure it’s accurate and easy to follow. If you get stuck, get forum-style help from the Projectarian community on Facebook (link in pattern). Watch my video on how to crochet with fur yarn.

– Instant download
– PDF only (digital files, not a physical book)
– English only



Neptune the Pineapple Crab | Crochet Pattern by Projectarian.

This pattern or any portion thereof may not be reproduced or used in any manner whatsoever without the express written permission of the designer. Copyright and intellectual property rights reserved.

Copyright © 2022


Additional information


This is a virtual product, delivered as a digital download.
No physical item will be shipped to you.
Your files will become available for download once the order is complete.

Due to their nature, digital items cannot be reclaimed and are therefore non-refundable, unless they fail to meet the following criteria:
– satisfactory quality
– fit for the intended purpose
– meets product description


You are welcome to sell any of your own items made from this pattern, but it is strictly prohibited by Universal Copyright Law to share, copy, edit or distribute the pattern itself in any way. Translations are not allowed.


Once you have purchased any pattern in this shop, you will have access to download that pattern as many times as you need to.

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