I dont know of any, but it would be helpful if someone could tell me, and some stronger blades....

heres the story

i was at my friends place, and we were flying his cx around, i was flying it, and i flew over to the side of his house, but i lost reception, low TX batts or sumthin, and the heli flew into the wall

Damage report:

Blades got shattered into about 50 pieces

the force of the blades hitting the wall shot the heli backwards, where it flew into Another wall, snapping the skids

my friends arm, he got about 3 pieces of the blade(s) embedded in it

so now i owe him some blades and and some skids