What I love about this printers tray is that it can be used horizontal or vertical. It depends on the wall and on the shells that you want to display. I change it out every so often.
One accent I really love is shadow box tables. I have a very interesting table that I bought from a seller on Etsy - that is two vintage windows from the 1950's, that he secured together with some distressed wood and created a table. It is so interesting and one of a kind. I get many compliments on it. It's great to display shells or any other collectibles.
This is looking straight down into the table where through the two windows.
A side view. This is such a unique piece. The pictures do not do it justice.