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Be kind keychain

A cut-out "Be kind" keychain in sky blue and white: a small reminder that goes everywhere.

Make your own keychain
3D render of a sky blue and white 3D-printed Be kind keychain with a steel split ring through its hole
Print only ~3 g Pro early access

"Be kind" in a round, bold script, cut out around the words, white letters on a sky blue outline. A small, friendly reminder for a school bag, a lanyard or the car keys, and an easy gift for kids to make and hand out. Good for World Kindness Day, the first day of school, a thank-you for a helper or a class project.

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Made with our free keychain generator, not modelled by hand: we typed "Be kind", chose the Letter outline shape and the Bold Script font, set the text size to 12 mm and the border to 3.5 mm, and picked the two colours. The zip holds exactly what the tool downloads: a 3MF with the tag and the raised letters as two coloured parts, and a one-piece STL. It comes out 55 by 20 mm and 4 mm thick, and prints flat with no supports.

Print a set for a class and let each child give one to someone who was kind to them this week. Printed in one colour it still reads, because the letters stand proud of the tag; for sky blue and white, a single-nozzle printer needs one filament change, and the print sheet in the zip says where.

Shown as a 3D render of the printed keychain with a steel split ring, not a photo.

What you need

2
  • About 3 g of PLA or PETG, in sky blue and white
  • A split ring or keyring, about 25 mm across

How to make it

4

  1. Print it flat as exported: no supports, 0.4 mm nozzle, 0.2 mm layers.

  2. Multi-colour printer: open the 3MF, each part already carries its colour. Single nozzle: add a filament change in the slicer's layer preview for white at 3.3 mm above the bed.

  3. Let the bed cool before you lift the tag off, so the thin edges stay flat.

  4. Open the split ring with a thumbnail or a small screwdriver and wind it through the hole.

Print details

17 minPrint time
~3 gFilament
1Printed parts
55 × 20 × 4 mmSize (W x D x H)
All print details
Print details
TypePrint only
Printed parts1
Size (W x D x H)55 x 20 x 4 mm
Print bed needed55 x 20 mm, 5 mm tall
Filament~3 g
Layer height0.2 mm
Infill15%
SupportsNot needed
DownloadZIP: keychain in 2 colours (3MF) + one-piece STL + print sheet + README
Added2026-09-25

Pro early access until October 25, 2026, then free with any account.

Make your own keychain →

Made with the free Keychain & tags generator. Upload your own drawing and get the same kind of part built from it, in your browser.

Free for personal use. Selling the pieces you cast needs a commercial licence (Pro or Founder); passing on the file itself is not permitted on any plan. Full terms.

New to casting? Read the keychain guide.

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Questions about this design

Is the Be kind keychain a good class project?

Yes. It prints quickly and needs only a few grams, so a class set is one or two plates. Children can choose their own colour pairs and swap the filament at the height given in the zip, which is a good first look at how printing works.

Can I write Be brave or Be you on the Be kind keychain?

Yes. Open the free keychain tool with Letter outline and the Bold Script font, and type Be brave, Be you or Stay kind. Short phrases keep the letters large, and the outline and the keyring hole follow the words.

Where do I change filament to print the Be kind keychain in 2 colours?

Start in sky blue, then change to white at 3.3 mm above the bed. Those heights are measured in the file, from its lowest point, which is where your slicer puts the bed; add each change in the layer preview where the new colour first shows. With a multi-colour printer, skip all that and open the 3MF.

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