Just a quick and simple Cotton Swab dispenser I whipped up in Fusion 360.
I made the walls 0.8mm thick because I wanted to have them as thin as possible while still maintaining structure. Meant to be printed with an 0.4mm nozzle and an accurate printer at 0.2mm layer heights.
The walls should be 2 lines thick and the bottom under the curved section should have some infill, I used 10% infill and only where support was needed. Print time for me was around 5 hours.