It could be done for a purpose antithetical to the majority approach on this board.
Everyone here seems to love clothes and creating great looking ensembles from pieces that may work well together because of elements in the respective pieces. Doing the latter requires an eye for it or experience.
I could see it from someone who also has an interest in clothes but lacks an eye and experience, is starting out and wishes to make a minimal financial investment while maximizing the number ensembles without risking an error of pattern or scale.
A maxizing combinations while minimizing expenditures approach, could involve five solid ties. I think in darker shades so the ties are always darker than the suits. A navy, a grey, a wine, a green, and a brown. Those could go with blue, grey, or brown suits of any pattern and with solid or striped shirts without there being g a pattern or scale problem involving the tie.
There might be a mistake of dullness, but there wouldn't be a mistake of pattern.
Maybe the same 5 hues in pindot, white small dots about an inch or two apart, foulards, or emblematic if the latter two avoid third colors that don't go well with the three suit colors and shirt colors chosen for the wearer' s complexion.
To be really flamboyant within the category of very conservative, the five ties could be one of the five colors in one of the solid or four patterns so that neither color nor pattern were repeated in the five ties. But that approach woukd differ from this thread's topic.