1- Go to this link: steam.tools[steam.tools]

2- Once you're in the website, you should see this:

2.1- Fill the blank case with your SteamID64, and click on Fetch Emoticons. To find your SteamID64, go to steamidfinder[www.steamidfinder.com] and copy this ID:
*Note: the SteamID64 used can be from anybody, it doesn't have to be yours. However, if you use someone else's SteamID64, and you don't own all his emoticons, you won't be able to use the mosaticon in your profile.

3- Once your emoticons are successfully loaded, scroll all the way down, and from there, you have two choices:
You can either load a JPEG file, or start a blank canvas, if you want to make it from scratch.

Left arrow: Undo.
Pen: Pen tool.
Line: Line tool.
Square: Square tool.
Circle: Circle tool.
Arrows: Move tool.
Droplets: Bucket tool.
Left T: Horizontal flip.
Right T: Vertical flip.

On the emoticon list:
Left click to select an emoticon.
Right click to disable an emoticon from your palette.

Once your mosaticon is done, simply click on Export.


Before doing anything else, make sure that your mosaticon contains less that 8000 characters (or 800 if you want to use it in comments). Make sure to also keep the text file. You will need it for later.

Then, simply copy the text file you saved, and paste it on either a Custom Info Box or a Items Up For Trade showcase.

When you edit your profile, it often happens that your mosaticon bugs out, especially when you have many mosaticons featured in your profile. To fix this, you have to use the text files you should have saved earlier and redo the last step with each mosaticon before saving your edit.