Temporary inserts for clamshell Parts Box

I love the Clamshell Parts Box by Nick Johnson, but as I was loading a few I realised I wanted to rearrange the contents between boxes - I wanted a way to quickly pour out the contents of a single compartment without spilling the others, so quickly threw together these inserts. These use only a few grams of filament and print in minutes, and worked for my purposes. Print in whatever materials you have laying around. I store a couple within the Clamshell boxes ready for use.