I have seen this some time ago when it was mentioned on slashdot. By now there should be lots of nice videos illustrating those on YouTube. One is this.

What I really like about this is that it allows to gain conflict-free intuitions about QM via macroscopic processes.

See also De Broglie–Bohm theory. I do not see a clear reason why MWI must be preferred. For me the deciding point is which can (better) be generalized relativistically. Apparently there are bohmian mechanic-based approaches

ADDED: The latter article contains the interesting conclusion: "if Bohmian mechanics indeed cannot be made relativistic, it seems likely that quantum mechanics can’t either".