Mixing Tray + Spatula

Simple mixing tray i used so i could with epoxy when gluing big prints / models together. I have made this tray a little bigger then most as I do like having the higher walls for mixing.The tray can be printed alone or with the attached mixer, profile added is a simple example. It can take a few twists to take detach the spatula - may look at improving this but a bit worried of making the join to small and will snap of when removed from print bed. Hopefully people find it handy and if you can think of any improvement add a comment.