A washing machine drip tray that will fit most models because it's only 20mm high. 

After draining the water, simply slowly place it upright. 

The water will drain into a tall container, and you can pour it out safely and mess-free using a funnel. 

My washing machine has a very low filter valve, hence the idea for this model.

A new V2 version is also available.

https://makerworld.com/pl/models/3265177-washing-machine-drain-tray-universal-low-profilev2#profileId-3702022

Less filament waste

Printing without supports

Higher capacity

A better spout for pouring water