Stackable Money-Storage for EURO

The Modules have 4 cells of which each can hold 10 coins ( a 2 Euro module can hold 160€ ).
I had a ton of coins flying around in my room und always put them in a jar but it was really annoying to count it as it wasnt at all sortet. So i sat down and looked for storage for Euro coins but couldnt really find an ildeal solution for my needs so i modelt one myself.
I went through a few different itterations but this design is the one im most happy with.