Updated to include "Guide Slots"
A silverware tray I modeled after seeing one for sale at Costco. It is fairly large so I've cut it down to its individual parts. If you like, you can print additional parts and fit them inside the expansion slots. In the future I might add additional modular units designed to fit specifically into the expansion slots, such as something to hold measuring cups in place.
All parts are printable without cutting if you have a 300x300 print bed. The largest piece will need to be rotated 45degrees. You'll need to print at least:
2x Expansion Slot Bottom
2x Expansion Slot Top
1x Square Top Right
1x Square Middle
1x Square Top Left
1x Silverware Unit Top
1x Silverware Unit Right Large
3x Silverware Unit Middle
1x Silverware Unit Left
The expansion slots will need to be glued together. It should be fairly obvious how/where. You could glue to rest of it together but I believe if you just assemble it then the expansion slots will hold it together fairly well.
I have not yet printed this yet because I am currently working on another project, but I'll begin printing soon. Will post pics when I am done.