3D-printed products and 3MF downloads from Roxium in Burlington, Ontario

A two-prong hair pin that holds a bun without a single elastic - the forks flex, so it grips and then lets go. Two lengths: 4.5" for fine or shoulder-length hair and 5.9" for thick or long. Printed flat in one piece, in one colour or two. Shown as a render, not a photo.

Design by riverbed

Sixteen ring gauges from 15.4 mm to 27.6 mm across, printed flat on one plate so you can measure a finger properly instead of guessing. The whole set is about 6 g of plastic - print it once and keep it in a drawer. Shown as a render, not a photo.

Design by porkac

A beer crate for batteries, scaled down to sit on a shelf: stacked sides, a slotted top and a handle you can actually lift it by. Holds a row of AA or AAA cells - pick which, they are separate crates. About 2.7" long. Shown as a render, not a photo.

Design by JSBallpython

A thin blade for digging the lint out of a phone's charging port, with a hook at one end and a flat scraper at the other. 34 mm long and a fraction of a gram, so it prints three at a time in a minute - one for the desk, one for the car, one to lose. Shown as a render, not a photo.

Design by eclien