◆ Print only
I love Mondays keychain
An "I heart MONDAYS" keychain in black, white and red. Said nobody, ever, until now.
Want your own version? Make it free in our i love you keychain tool. A free account gives you free downloads every week.
◆ Print only
An "I heart MONDAYS" keychain in black, white and red. Said nobody, ever, until now.
Want your own version? Make it free in our i love you keychain tool. A free account gives you free downloads every week.
The souvenir "I heart" mark with the least believable word in the language underneath: MONDAYS. A black plate, white letters and a red heart raised above them, for the coworker who is suspiciously cheerful at 9 am, or as pure sarcasm for everyone else. Good for an office Secret Santa, a new job, a back-to-work gift or the most relentlessly positive person you know.
Made with our free I love you keychain generator, not modelled by hand: we typed MONDAYS, set the width to 60 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 60 by 39 mm and 4 mm thick, and prints flat with no supports.
Leave it on a colleague's desk on a Monday morning: it is the only Monday gift that gets a laugh. 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) | 60 x 39 x 4 mm |
| Print bed needed | 60 x 40 mm, 4 mm tall |
| Filament | ~6 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.
Mostly, yes, and that is the joke. It works both ways: as sarcasm for anyone who dreads the start of the week, and as a straight compliment for the one coworker who genuinely loves it.
MONDAYS is seven letters, so we set the width to 60 mm to keep the letters about as tall as on the four-letter tags. It still prints flat with no supports, in about the same time as the smaller ones.
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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