A book & a few postcards

Take a book out of a stack of old Readers Digest (that nobody seems to want), 

fold the pages in (a bit like this),

slot in some postcards (I do have more than a FEW!)

(A bit like the old Rolodex) and there you have it.

A postcard 'hedgehog' or as some would say "just another arty-farty dust-catcher"!