Luca,
Drop me an email, our Scouting group has a bunch of Spark Lites left the Orange version and we could send you one or two...
We also will have some extra Star-flash mirror's in a few weeks time and these babies will reach more then a couple of hundreth meters <img src="images/graemlins/wink.gif" alt="" /> we tried it over 2km's (GPS confirmed) standing on a bridge flashing at our observer and they WORK!
I personally have an 3.5" X 5.5" (approx) laminated glass mirror, an official US military pilot one and this one really works but weighs a ton and could easilly break.
For what I carry I'd rather carry the Star-flash and carry other survival stuff for the weight saved.
We also might have some spare mini compasses, but these are just to give an "indication" we use bigger Silva's Recta's for the accurate work.
Best Scouting wishes from Holland,
Bagheera