Ikarus ECCO PICCOLO, one of the smallest Electro RC Helicopters i've ever seen.
It's awesome ... it weights less than 300g completely ready to go and it assembled in about 3 hours !
Have a look on the size:

Look at the heli not the chick !

i've got myselfe the a fuselage kit:

weights extra 60g, but what the heck !
Cheers
DW6