Of course you can....how much imagination do you have?....that is the only hindrance.....sky's the limit
oh...and weight......you need to keep ...(camera..battery..and camera mount)...4 oz or less....NO MORE
a gopro is too heavy...I suggest something like a xiomi sport cam or a runcam...I am using a runcam copy..and also I have an "Ion" Snap Cam Lite...5mp....100 bucks online..both give great video...
you need to figure our how to mount a camera using the original dovetail mount underneath the Syma X8
I used the corresponding piece off of the original camera, and mounted that onto a Andoer gimble, for vibration elimination.the whole assy, then slides into the original mount securely.
go to the build threads and find mine..the pics will show you how to mount it.