This strainer is easy to print and can be used in conjunction with the sink drain stopper. I printed it in PETG, however should also work with other materials.
There are three different sieve types with different drain diameter offered. If it doesn't fit to your drain, try printing it with a different xy-scale. Mostly this will work well.
In case your drain design still doesn't fit, please feel free to contact me. I am open for more variants of this type of sieve.
The author marked this model as their own original creation.