Lens cap holder
thingiverse
This was created as a copy of a similar commercial device. You'll need to add supports to print it, or you can use the gcode file (made with simplyfy3D, includes supports). How long PLA will survive in use must still be experimented... I'm not responsible for caps loss...
Download Model from thingiverse
With this file you will be able to print Lens cap holder with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Lens cap holder.