Also on these boards
Scrap wood instagram display board, you could hang this up anywhere and style the clothespins however you wanted. Quick and easy project!
I can imagine doing something cool with photos + vintage industrial metal grating (not a memo board, but maybe clips+photos?)
Sandwich board shelving. A crazy idea from before, the table could flip and convert to this on the other two days of the conference, acting as a book lending station. The shelves could be screwed and twist around for holding books.