Robot vacuums quietly patrol floors as anonymous discs, efficient but a little eerie, especially for kids and pets who aren’t quite sure what to make of a machine that roams around on its own. They slide under sofas, bump into chair legs, and dock again without anyone feeling particularly attached to them. It doesn’t take much to turn that same machine into something closer to a small pet that happens to vacuum.
This 3D-printed cat/dog robot vacuum decoration, sold under the Petokka name, is a small kit that gives the robot a face, ears, and movable eyes. Rather than stickers, it’s a set of PLA parts that sit on top of the vacuum and react to how it moves, so the cleaning bot comes back from a run looking like it’s had its own adventure.
Designer: Zakka Gyou
A vacuum starts a cycle with wide eyes and perky ears, then bumps into table legs and skirting boards. Each impact nudges the eye assemblies, twisting pupils into crossed or sleepy positions, while crawling under furniture folds the hinged ears back. When the robot docks, its face is slightly scrambled, and you can read its route in the way its expression has shifted, one eye drowsy, one ear still folded down.
The kit works without wiring or electronics. The eyes sit on low-friction pivots, the ears are hinged triangles, and everything is 3D-printed in PLA and resin. There’s no battery, just gravity and inertia doing the work. The seller includes a choking-hazard warning, noting that parts aren’t meant for toddlers or pets that chew, with an option to request only ears or sticker faces if small pieces are a concern.
Petokka is designed for basic IR or bump-type cleaners with flat tops, like many Roomba-style bots. If a vacuum uses a LiDAR turret or top camera, those areas need to stay uncovered, or mapping can suffer, though some tests showed no interference. The kit is an overlay, not a hack, meant to respect the robot’s sensors while giving it a personality that changes with every session.
Each set is printed in a small Japanese atelier, with visible layer lines and tiny imperfections from 3D printing. The maker calls this an early test edition, with certification in progress and materials documented with safety data sheets. It’s a limited-run experiment rather than a mass-market accessory, which makes it feel more like a crafted character than a licensed skin you buy from a retailer.
A handful of plastic parts can change the emotional temperature of a room. The vacuum still cleans the same way, but now it looks back at you with lopsided eyes and folded ears after working its way around furniture. It’s hard not to say “nice job” when it docks looking like it just survived an obstacle course, which is a reminder that sometimes making home tech friendlier isn’t about new sensors or AI, it’s a face that gets a little messed up while it works.
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