Catalyst Muse Mail Club
Letters for the person you are becoming
Catalyst Muse is an artist-led monthly snail mail club created by Olga in Haarlem, the Netherlands. Each edition combines a personal letter, original art, stickers, collectible paper objects and original photographs, and is posted worldwide.
October 2026 · €14 · Worldwide shipping included
Join by 27 September · Ships 1 October
One-time purchase · No subscription
Issue 01 · October 2026
Inside the October Edition
A small collection, sealed into one envelope.
The Letter
A printed personal letter about becoming the person you once imagined, finding yourself at another crossroads, and making decisions without knowing exactly where they lead.
Written from the road, not from the finish line
Original Art
“Don't Lose Your Fire” — an original A5 (15 × 21 cm) Catalyst Muse art print created for the October edition.
Stickers
Original Catalyst Muse stickers created for the edition.
From the Netherlands
Two original photographs from the Netherlands.
A small piece of the place I am living in now, included in the monthly edition
Surprise Paper Object
One surprise paper object created or selected for the month.
Seasonal Extra
One additional seasonal surprise, such as a recipe or journal prompt.
October 2026
Receive October
One sealed edition · One small world
The October Edition
Receive October
€14
One October 2026 edition.
No subscription required.
- Join by:
- 27 September 2026
- Ships:
- 1 October 2026
This is a one-time purchase. You will not be automatically subscribed.
Posted worldwide from Haarlem as untracked letter mail.
October 2026
Shadow / Play / Tender Mystery
Autumn has begun to close in.
The light changes. Evenings become more private. Things feel a little stranger, softer, less obvious.
October is about the parts of us that appear when life becomes quieter: instinct, curiosity, play, appetite, shadow, and the things we do simply because they make us feel more alive.
One small world, made around one idea.
About Olga
I am not writing to you from the finish line
For years, I kept arriving at the same question through completely different parts of my life.
As a teacher, I wanted to understand how people learn.
In tech, I learned how systems shape behaviour.
As a volunteer, I met people rebuilding after loss, addiction, relocation, career changes, and lives that no longer fit.
And somewhere along the way, I became convinced of something very simple:
People do not always need fixing. Sometimes they need witnessing.
Catalyst Muse came from that idea.
I am 36, living in the Netherlands, raising a family, standing at another career crossroads myself, and trying to build something of my own while I figure out what comes next.
So I am not writing these letters as someone who has solved life.
I am writing from the road.
Haarlem · The Netherlands
Olga
Founder, writer and maker
Communication has become faster than our capacity to be present
We can reach almost anyone instantly. And yet so much of modern communication arrives carrying a small demand.
Reply.
React.
Catch up.
Do not forget.
A letter behaves differently.
It does not ask you to answer immediately.
It does not disappear under fifty newer messages.
It does not tell you that you are late.
It waits.
You can hold it. Fold it. Leave it inside a book. Find it months later.
Someone thought of you. Someone made this. Someone believed it was worth the stamp.
The Mail Club
October is just the beginning
Catalyst Muse will become a monthly correspondence club.
If you want to know when recurring membership opens, leave your email and I will write to you first.
October remains a one-time €14 edition.
Founding Issue
This is new
October is the first full Catalyst Muse Mail Club edition.
I am building this project in public — from sketches and bad first ideas to paper tests, finished artwork and the envelope that eventually lands in someone else's hands.
If you are here early, you are seeing the beginning rather than a polished history invented after the fact.
I like that better.
Questions
Everything, in brief
If your question isn't here, write to hello@catalystmuse.art.
Issue 01 · October 2026
Shadow / Play / Tender Mystery
A personal letter.
An original A5 art print.
Stickers.
Two photographs from the Netherlands.
A surprise paper object.
A seasonal extra.
€14
Worldwide shipping included. Join by the 27th · Ships on the 1st
Created by Olga in Haarlem, Netherlands.
Notes
Just the things worth sending
New editions, things influencing the work, and the making of Catalyst Muse. No daily emails. No productivity advice.