Inevitable you eventually lose the centre of your "Tupperware Ware Crisp It" ( I probably accidentally chucked ours in the garbage) and your lettuce or greens forever goes soggy . . . . . . waaaay quicker than before so here is a plan for replacement.

If you have SCAD, the SCAD file lets you easily change sizes and hole placements -

Small holes are automatically half the radius size of the larger ones.
[UPDATE to the SCAD file, 23 Jul 2022]
If the height of the central spike is set to zero the spike is removed and replaced with an extra drain hole. This makes it more useful for non-lettuce items like spinach.
The STL file for the spikeless plan is the TWlettnspike.stl file.
This can also be printed upside down without any support.,

Creality

CR10S PRO

Doesn't Matter

Yes

0.2

30%

Used PETG because of relative food safety although it could be printed in just about any material,

The basic shape is a thinnish hollow flat cone so the support is wedged somewhat inside the cone but by breaking out the inner part of the supports the rest comes out relatively easily