For this 3D print, I printed something similar to a colander for straining things.

This is what it looks like, it was a very easy print.

It could be used to sift anything. I used it to sort sand from rocks and it worked well. It was a very easy print, I just used normal setting and it printed great. Here is a link to the print code: https://www.thingiverse.com/thing:909118

The print code is for various sand toys but obviously I only picked the strainer.

Here is a video describing the print in more detail: