How can I use a bent seatpost to move my cruiser's seat farther back? I realize this isn't everyone's taste, but indulge me for a moment...

I just bought a beater cruiser bike on craigslist, and I'm trying to move the seat farther towards the rear of the bike for a more "relaxed" riding position.

Some questions:


Is there a name for this kind of modification? I'm just calling it a "bent seat post", but I might have better luck Googling if I knew what this was called.
Is it safe to cut handlebars for this kind of seat post? A local mechanic told me they wouldn't support a person's weight, but some of the examples below appear to be modified handlebars.
Is there some other material I can use? Someone suggested water piping, and I'm looking for more alternatives.
Can a seat post like this be purchased? I'm guessing no, but you never know.


Some examples via Google:


subtle bend




welded joint
After some more searching, it looks like I'm looking for a layback seatpost, and they're available for purchase on eBay.