Hey Potterheads-- quick question...props available

You can create a calendar. In Microsoft Word, simply choose the calendar template you want (I suggest the picture calendar) and fill it in with your favorite pictures. Use the picture tools to format each image. You can save the calendar and print it out when you have access to ink. Or you can choose only black and white pictures.
If you already have a wand, broomstick, or something similar, use a couple of Command hooks to hang the object.

A collage :) Take a bulletin board or poster paper and print out a bunch of HP related photos and quotes. Cover the ENTIRE board with it and hang it up <3

Well if you have a printer and ink, you could always print some pictures up and create a collage or something :)

go to your local library...
they usually have free printers there...
(if not free, only like 25 cents per page)
find a favorite pic of a character, or a pic of an item from HP...
look around fanpop for one that speaks to you...
sometimes, you can click color print at the library, and print color....