Five desktop 3D printers hum steadily in a Bukit Panjang HDB apartment late at night. The sound—a faint click, a soft whirr, the whisper of filament feeding through heated nozzles—is mechanical but strangely calming. Tiny plastic keycaps are stacked in vibrant colors like kueh lapis, layer by layer. Despite being a small production line, the glow of their LCD screens conveys a sense of purpose.
Jennifer Ang, a Singaporean product designer who turned a restless habit into a modest but surprisingly successful business, is at the heart of this subdued choreography. For those who can’t stop tapping, clicking, or fidgeting throughout the day, her company, Heyo.makers, sells customizable 3D-printed fidget clickers, which resemble keypads.
| Name | Jennifer Ang |
|---|---|
| Profession | Product Designer & Solopreneur |
| Brand | Heyo.makers |
| Location | Singapore |
| Known For | 3D-printed customizable fidget clicker keychains |
| Background | Industrial design & 3D printing education |
| Business Launch | Pop-up retail & online sales (2025) |
| Product Range | Custom keycaps, fidget clickers, accessories |
| Production Setup | Home-based 3D printing studio |
| Popular Designs | Singapore snacks, emojis, characters |
| Reference | CNA Life Style |
The thought started with a well-known irritation. Ang discovered that she kept clicking pens as she drew sketches. She saw that the motion was focused, not distracting. Between rhythm and therapy, the sound and tactile bump brought relief. Similar results were obtained with mechanical keyboards. After a while, the connection became clear.
The use of fidget tools is not new. In 2017, the fidget spinner craze took over office desks and classrooms. However, Ang’s rendition feels more unique because it was influenced by regional culture and design instincts. Her clickers create a portable, pocket-sized ritual by enabling users to snap interchangeable keycaps into a tiny keypad base. Some caps have cursive initials and smiling faces, while others look like curry puffs and kueh, which are small cultural symbols that pass for stress relievers.
The customization might be the true draw. A nervous habit becomes a tiny expression of identity when one owns an item that reflects one’s unique preferences, such as favorite foods, colors, or symbols. Customers appear to be assembling miniature versions of themselves as they peruse her pop-ups and pause over the tiny designs.
Since she was a student of industrial design, Ang has been fascinated by 3D printing. She was drawn to the immediacy of the technology—a morning idea could become a physical reality by the afternoon. Even in a time when digital fabrication is pervasive, that immediacy still has a magical quality. Her patience was probably put to the test more than any product prototype when she put her first printer together from more than 100 parts over the course of three weekends.
Like many designers, she changed course during the pandemic. Phone stands were in high demand due to Zoom calls; home offices required compact, useful items. She started selling personalized keychains and accessories online and quickly became familiar with the ins and outs of e-commerce. Customers don’t want to wait an hour for a printed item, so pop-up retail presented a challenge.
That was resolved by the fidget clicker. At the stall, it could be instantly customizable, modular, and pre-printed. She was concerned that they wouldn’t sell at her first pop-up. Rather, on the first day, customers purchased dozens. It’s difficult to ignore the surprise in her memory, as though the market provided an answer to a query she wasn’t certain she had posed.
This has a deeper cultural undertone. Anxiety is now pervasive. Students fidget through online lectures; subway passengers tap and scroll endlessly; open-plan offices hum with anxious energy. The popularity of tactile self-soothing items points to a silent recognition that there is too much mental noise in modern life.
In order to redirect restless movement into something less distracting and more deliberate, Ang presents her clickers as “habit replacement.” The physical ritual—click, bump, release—seems to provide a momentary anchor, though it’s still unclear if such items actually lessen anxiety.
Her production setup is still minimal, consisting of a few printers, carefully selected materials, and hours of trial and calibration. Subtle layer lines that show the additive process are visible in each cap. When you hold one in your hand, the surface feels a little warm and textured—not factory-perfect, but definitely made by humans.
She wasn’t prepared for the fact that a significant portion of her clientele are adults, particularly women. It questions preconceived notions about who “needs” fidget toys. Maybe, in silence, everyone does.
Although still modest, the economics show promise. Since late 2025, more than 1,000 clickers have been sold, indicating a consistent demand as opposed to a viral surge. That stability might turn out to be more resilient. Rituals endure while trends come and go.
One gets the impression that this little invention sits at an intriguing nexus of craft, technology, and psychology as she watches her printers work through the night, creating rows of vibrant caps that are meant to be placed on desks, in pockets, and on bags all over the city. It is strangely meaningful and trivial at the same time.
The actual click is not very big. Very little.
However, that sound might provide a brief respite in crowded trains, fluorescent-lit offices, and late-night study sessions — a tactile punctuation mark in an otherwise unending stream of stress. And maybe that’s sufficient.
