A modification of jmbinette's ECM Synchronika Drain Pan upgrade (link), which is itself a major upgrade of the drain pan provided by ECM. 

This variation is sized slightly smaller in the corners to make it printable on a Prusa Mini, and has a gradually-sloping interior contour with a raised pattern to serve as a debris/grounds traps to keep the outlet port clean.

There are also two embedded cylindrical cavities for inlaid refrigerator magnets, sized 10x3mm. The intent was to improve the stability of the drip tray. The gcode supplied includes a pause (M601) at the appropriate layer for inserting the magnets. If you embed these, note that the ECM's drain pan above is not a magnetic alloy of stainless steel -- you would need to include a thin steel pad (as for some cell phone cases) on the underside of the pan.