The Brick Ring of Creativity

EDIT

I created new set of bigger size ring 24 - 30 mm inner diameter. 
The Bigger Brick Ring of Creativity

I just wanted design and print one or two rings for kids to attach colorful decorations from some brick system, but I ended up creating several variations for my friends. I designed rings in 10 sizes (14–23 mm inner diameter). If you need a different size, let me know, and I can adjust it.

Tested on MINI+, I recommend a 0.1 mm layer height. Supports were only needed for the studs.

Be careful when choosing the size for kids to make sure no one's finger gets stuck.