This amazing drain strainer that pop's open for the easy discard if kitchen scraps that get washed in to your sink was designed by LogicalPlanet.  It's completely print in place with the supports built in to the model.  It's recommended to print in ABS (or other heat resistant materials) to stand up to the temperature of the water.  I've included 4 different options in one profile (regular height slotted bottom, regular height hexagon bottom, low profile slotted bottom & low profile hexagon bottom).  

Post processing is easy and a video of it can be found here:

I TAKE NO OWNERSHIP OF THIS MODEL 

I just wanted to share this amazing model from LogicalPlanet.  They really have some well thought out and superbly designed tools and gadgets.  I highly recommend you check them out.  All their designs are available on Thangs but the reason I'm publishing this on MakerWorld is because Thangs only provides the STLs without the appropriate fine tuned settings (as suggested on their website) for the models.  I did find a MakerWorld creator by the same name but their available models are limited.