◆ Print only
An "I heart CARBS" keychain in black, white and red, for the friend who has never met a pasta they did not like.
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The souvenir "I heart" mark with CARBS underneath: a black plate, raised white letters and a red heart raised higher still. For bread lovers, pasta lovers and every marathon runner who has ever carb-loaded with real enthusiasm. Good for birthdays, a runner's race day, a pasta night, the end of a diet or a baker's gift.
Made with our free I love you keychain generator, not modelled by hand: we typed CARBS, set the width to 50 mm and the white and red rises to 0.8 mm each, and left everything else at the page's defaults (the Fun & Bold font, the keyring hole beside the I). The zip holds exactly what the tool downloads: a 3MF with the plate, the letters and the heart as separate coloured parts, and a one-piece STL. It comes out 50 by 36 mm and 4 mm thick, and prints flat with no supports.
Tie it to a loaf of fresh bread or a bag of good pasta: the most honest gift tag there is. Printed in one colour it still reads, because the letters stand proud of the tag; for black, white and red, a single-nozzle printer needs two filament changes, 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.
Print it flat as exported: no supports, 0.4 mm nozzle, 0.2 mm layers.
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 2.3 mm and red at 3.1 mm above the bed.
Let the bed cool before you lift the tag off, so the thin edges stay flat.
Open the split ring with a thumbnail or a small screwdriver and wind it through the hole.
Print details
| Type | Print only |
|---|---|
| Printed parts | 1 |
| Size (W x D x H) | 50 x 36 x 4 mm |
| Print bed needed | 50 x 37 mm, 4 mm tall |
| Filament | ~4 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Download | ZIP: keychain in 3 colours (3MF) + one-piece STL + print sheet + README |
| Added | 2026-10-05 |
Made with the free I love you keychain generator. Upload your own drawing and get the same kind of part built from it, in your browser.
Free download. Opens the Thingiverse listing in a new tab.
Free for personal use. Selling the printed piece itself needs a commercial licence (Pro or Founder); passing on the file is not permitted on any plan. Full terms.
New to this? Read the custom love keychain guide.
It is a great one for marathon season: every runner loves the carb-loading part. Clip it to their race bag or their car keys, and it is a small cheer on the morning of the big run.
Yes. Open the free I love you keychain tool and type PASTA, BREAD or any word up to 24 characters. The word is sized to the width of the I and the heart, and the page tells you if a long word makes the tag wider.
Start in black, then change to white at 2.3 mm and red at 3.1 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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