Combine the craft of knitting with the possibilities of 3D printing. We’d love to see 3D-printed tools that directly support the process: holders, tension

Robot vacuums are handy, but they’re far from perfect. This round is about designing smart add-ons and small upgrades that make them work better. Bumpers that protect furniture, ramps or platforms to cross thresholds, guards that prevent the vacuum from getting stuck, docking station tweaks for easier charging — or even replacement side brushes. And for a bit of fun, personalization is welcome too! (Like a parade float for your cat?) It doesn’t matter which brand you own — iRobot, Roborock, Ecovacs, or anything else. The important thing is that your design is functional, safe, and doesn’t interfere with the electronics. Practical fixes or playful extras, both have their place here.