Hack a Day Badge
Description
This is the badge the Hack a Day team wore around CES and gave away to a few people. You can see the posts here:
hackaday.com/2010/01/08/ces-update-makerbot-gets-a-badge/
and here:
hackaday.com/2010/01/09/ces-update-ces-badges/
Here is the how-to post on how the badge was created in OpenSCAD:
hackaday.com/2010/01/11/how-to-make-a-printable-ces-badge/
Now everyone can show that they read hackaday.com with this custom-designed badge.
It takes a little over an hour to print and the wrenches are pretty much guaranteed to pull up and/or warp the build surface.
hackaday.com/2010/01/08/ces-update-makerbot-gets-a-badge/
and here:
hackaday.com/2010/01/09/ces-update-ces-badges/
Here is the how-to post on how the badge was created in OpenSCAD:
hackaday.com/2010/01/11/how-to-make-a-printable-ces-badge/
Now everyone can show that they read hackaday.com with this custom-designed badge.
It takes a little over an hour to print and the wrenches are pretty much guaranteed to pull up and/or warp the build surface.
Instructions
1: Download the stl file.
2: Skeinforge said stl file.
3: The stl is not centered in the y direction so you will need to setup the build platform about 1cm towards the back from the center of the build platform if you have a Cupcake CNC.
4: This build has a huge initial surface area and will attempt to foil its own creation by pulling up. You will need to recite incantations, sacrifice dust bunnies in a fiery cauldron of acetone, whatever it takes, just don't get mad at your machine when your print starts to pull up.
5: Remove from the build platform and raft.
6: Attach a bar pin to the back with hot glue or epoxy.
7: Allow glue to cool/cure/dry.
8: Proudly wear upon your getup to show you read Hack a Day!
2: Skeinforge said stl file.
3: The stl is not centered in the y direction so you will need to setup the build platform about 1cm towards the back from the center of the build platform if you have a Cupcake CNC.
4: This build has a huge initial surface area and will attempt to foil its own creation by pulling up. You will need to recite incantations, sacrifice dust bunnies in a fiery cauldron of acetone, whatever it takes, just don't get mad at your machine when your print starts to pull up.
5: Remove from the build platform and raft.
6: Attach a bar pin to the back with hot glue or epoxy.
7: Allow glue to cool/cure/dry.
8: Proudly wear upon your getup to show you read Hack a Day!
License
Hack a Day Badge by Devlin is licensed under the Attribution - Non-Commercial - Share Alike license.

It seems you could avoid problems by making it in two, snap together pieces.