A two colour placemat
Flower Mat STL files ::link
The link downloads a zipped folder with the Flower Mat and a Case to hold 4 mats
The filament change procedure to change colour is outlined in ‘3D printer notes’ on this site.
The files are for a left hand orientation. The right hand can be made by mirroring in host software ( I use Repetier Host)
If placing LH and RH in the same case one has to be turned over