st school you could get some super glue, glue the cd rom drive shut, glue the floppy drive shut, switch the keys around on the keyboard and glue them in, glue the mouse to the desk and superglue the ethernet cord in the ethernet port.
some kids did that at my school to one computer. Just gave it the whole super glue treatment. They even super glued the monitor to the computer itself since it was a table top computer
Name the new folder by pressing Alt+0160. The folder will have no name.
Right click on the folder select Properties then Customize.
Click on Change Icon. Scroll through the list of icons till you see some spaces. Select on of these then click OK then Apply and OK on the previous properties box.
Done. Just make sure you know where it is on your desktop. If you don't then go the the corner of your desktop press and hold the mouse button and drag the mouse to the opposite corner. All your desktop icons will be highlighted together with the 'hidden' file.