This is my 6.3mm audio jack holder. I made it because I wanted to store the 6.3mm to 3.5mm adapter for my audio interface near it. It works really well, just don't use it with the hole facing down.

Use double sided tape to adhere it to a flat surface. I am using 3M VHB tape but thats a bit overkill.

I printed it with 0.2 layer height and no supports in a standing position. You might want to consider a brim around it.

I am looking forward to your makes and if you have any questions or suggestions, feel free to message me or leave a comment.