Round 6 - Judge Whistway

...because both can be used as a replacement for wellies . -- PeterTaylor
...because neither are shiny . -- Requiem
...because neither have been mistaken for WikiPedia by geeks . -- MoonShadow
...because neither are often talked about in my head . -- Bobacus
...because both are as violet as a box of chocolates is . -- ChrisHowlett