I designed and modeled this tray to store bits and bobs that were just laying around, this gives them a home so they are easy to find and wont be damaged.

The inserts slot in and hold securely, if they don't then you could try a bit of glue. I chose to do inserts because the whole thing would have taken too long to print (because I cant do long prints with my current circumstances).

Please ignore the different colour plastic, I ran out of the matte gray so to finish it I had to use some blue.

If you have any questions feel free to leave a comment and I will try to respond. Thank you for looking.