Logistics of a Portkey

[Paul]

Hi,

Quidditch Through The Ages does give an example of a broomstick 
Portkey (pg 30):

 ... there have been several incidences of broom-tampering over the 
centuries, the most dangerous being the transformation of the 
referee's broom into a Portkey, so that he or she is whisked away 
from the match halfway through and turns up months later in the 
Sahara Desert.

Hope this helps.
Paul