Microscopic Chamber to collect to store seeds etc.
Cover the holes with two 18mmx18mm cover glasses (There is a special inset on the top and back, the backside inset didn't print that well here though.)
The chamber itself features 2.6mm height if you need a bigger chamber, don't hesitate to mail me The sides of the slide do feature 1mm thickness, so you can put them into your regular case (you might need to leave space for the adjacent slots), also by doing so it saves filament and printing time.
I also printed a transparent version, wich imho looks a bit too much "self made" but it might actually provide some additional surrounding light to the subject.
Non commercial use only, if you make in any way money using this design or a design build upon this, contact me with the instituion / company your are working..usually I'm ok with it ( just mail me at email@example.com )..its also interesting to see where things land.