UPDATE :

- addition of a larger tray to be able to put larger flexis (be careful don't forget to print 3 columns of the same height)

- addition of a larger tray supported by 3 columns, height 10mm or 20mm of your choice (be careful don't forget to print 3 columns of the same height)
- addition of a tray supported by a column, height 10mm or 20mm of your choice

I needed a display to display my mini flexis at markets, I created this one, I'm putting it here in case it could be useful to someone

You will need to use a dot of glue to hold the parts together

enjoy !

(Be careful the carbon effect is not in the file, it is obtained thanks to my bed plate)

I chose to print the base plate upside down to have the carbon effect thanks to my tray 
if you are not looking for this effect you can simply flip the base and you will not have supports