I actually invented following Variant and even played it with an moderate success:
1.f3 2.g3 3.Kf2 4.h4 5.Kg2 6.Rh2 7.Kh1
If opponent castles short you push your h-pawn and crush him.
If opponent castles long you start pawn attack there and your king is pretty safe
played the account Gambit: be racist to your opponent
what is that