Simple holder for the Loctite Creative glue pen to mount it on an IKEA SKÅDIS. (CC BY-SA license)

No supports needed. It uses the T-Clip System.

NOTE:

• The T-Clip is included in one of the print profiles but not part of this model/project as it falls under a different license. It is only included for convenience.
• The profile including the clip is set to print by object. Don't worry if it looks like it's only printing the clip.
  You can find the clip here: https://makerworld.com/en/models/61308

Thanks to @capze. for their incredibly useful T-Clip system negative:
https://makerworld.com/en/models/25751

The Fusion 360 file is also available to download if you want to improve upon that design or remix it properly. (I am still a beginner and some of the constraints are not well done, so expect weird behavior when changing dimensions.)