Replying to Butter envy

One thing about snowboarders that always makes me jealous is their ability to dick around the mountain with butters and other little shit like that when the snow or park is shitty. So two questions:
1. What ski is the flexiest and enables one to butter easiest and with tips/tails highest in the air?

2. Out of curiosity, what types of flatland type tricks do you skiers out there do when you're dicking around the mtn.

2 1/2. The thing Gagnier does in WHiteshine where he kinda spins on the noses of his skis, how the hell would one go about attempting that?