This heart-shaped keychain fidget features a smaller heart captured inside a larger outer heart. The two shapes are interlocked at the top and bottom, allowing the inner heart to spin freely while remaining securely attached. The result is a compact fidget that can be rotated with one finger, making it easy to use on the go.

The idea behind this design was to create a small fidget that feels satisfying without relying on springs, sliders, or clicks. The spinning motion gives constant tactile feedback, while the heart-in-heart shape makes the object visually readable even at a glance. It works well as a pocket fidget, a bag charm, or a keychain accessory that doubles as something to play with during idle moments.

This design is also part of a personal challenge I’m doing for the year 2026: designing and releasing a brand new 3D printable model every single day for an entire year. Each design will explore a different idea—some practical, some playful, some reflective. If you enjoy following creative processes, testing new designs, or simply watching ideas turn into physical objects, feel free to follow along and join me on this 365-day journey.

YouTube: https://www.youtube.com/@Mazetropolis
TikTok https://www.tiktok.com/@mazetropolis
Instagram: https://www.instagram.com/mazetropolis/

Heart Spinner Keychain – Interlocking Heart Fidget

Heart_keychain_fidget_toy_final.stl

Experience an intriguing blend of creativity and challenge with our Tricky Spiral Rectangular Fidget Puzzle, available on thangs.com. Found within the "Tools & Organizers/Office & Desk" category, this 3D printed model promises a fun, interactive encounter on your desk. Ideal for puzzle

Tricky Spiral Rectangular Fidget Puzzle

Tricky Spiral Rectangular Fidget Puzzle.stl

This heart-shaped puzzle is a small assembly challenge made from 7 unique pieces that fit together to form a complete heart. Each piece has a simple geometric form, but finding the correct orientation and order reveals how the full shape comes together. It’s a quick, satisfying puzzle that works well as a desk toy or small challenge to pick up and solve in short sessions.

The idea behind this puzzle was to create something approachable rather than overly complex. With only seven pieces, the puzzle feels inviting even to people who don’t usually enjoy long or difficult brain teasers. It’s designed to be solvable in a few minutes, making it a nice interactive object for desks, shelves, or small gifts — something you can hand to someone and watch them try to solve right away.

This design is also part of a personal challenge I’m doing for the year 2026: designing and releasing a brand new 3D printable model every single day for an entire year. Each design will explore a different idea—some practical, some playful, some reflective. If you enjoy following creative processes, testing new designs, or simply watching ideas turn into physical objects, feel free to follow along and join me on this 365-day journey.

YouTube: https://www.youtube.com/@Mazetropolis
TikTok https://www.tiktok.com/@mazetropolis
Instagram: https://www.instagram.com/mazetropolis/

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