Stackable Coffee Mug Saucer

I designed this saucer to put coffee mugs on it.
The outlines are drawn with the word coffee in French and English.
The saucers are stackable, which allows you to print several and store them on top of each other without slipping.
There is also a non-stackable version.
I haven't tried printing it without supports. And on the photos you can see that I printed it on a Makerbot Method with PVA as a support (dissolution in water in about ten hours max).