1. Black to play and spice things up in an almost equal position:

2. White to play and make black's life very hard:

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For 1., it seems like Nh2 attacking the queen open some possibilities. If white takes, black checks with the rook.

For 2. what about Rf6, threatening to remove the bishop? If the pawn takes, Qxh6, very precarious for the king.

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You're right with both, at least when it comes to the first move:
1. Interestingly, while it's the best move, Nxh2 only yields a drawish position (-0.9), but that's assuming white plays a normal move like Qg2, forcing a queen trade. In this case, however, white played Rxh2??, allowing Re1+ followed by Qf1#
2. Rf6 is much more complicated than that. Rather than removing the bishop, the real threat is Rxh6, threatening Rh8#, so black then has to take, but then it's impossible to survive. If black takes the rook, white first calmly retakes on f6 with a pawn and there's no way for black to survive due to both Qh7# and Qg7#.
My opponent was better than that (he's actually from my chess club and we played a lot both OTB and online), and rather than taking, he played Qd7, intending to meet Rxh6 with gxh6 Qxh6 Bf5! Qg5+ Bg6, which is still winning for white, but much trickier. Instead of that, I doubled the rooks with Rbf1, he played Bg4 and I moved the queen to h4. He played h5 and I played h3, to which he took on f6, ending in checkmate after Rxf6, Rae8 (with best defense it's mate in 7, this brings it to mate in 2), Qg5+ Kh8 Rh6#
The whole game if you want to analyse it:
1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. Bg5 { D30 Queen's Gambit Declined: Traditional Variation } Nbd7 5. e3 Bb4+ 6. Nc3 h6 7. Bxf6 Nxf6 8. cxd5 Bxc3+ 9. bxc3 exd5 10. Bd3 c6 11. O-O O-O 12. Rb1 Qc7 13. Ne5 Nd7 14. f4 Nxe5 15. fxe5 Be6 16. Qh5 b5 17. Rf6 Qd7 18. Rbf1 Bg4 19. Qh4 h5 20. h3 gxf6 21. Rxf6 Rae8 22. Qg5+ Kh8 23. Rh6#