On Thu, 18 Apr 2013 08:39:30 -0700 (PDT),
wrote:

On Thursday, April 18, 2013 8:35:21 AM UTC-7, wrote:
They aren't "sticking" anyway.
you are actually trying to break a vacuum when you pull them apart.

Ah. That makes a lot of sense!

So, the trick would be to prevent or vacate the vacuum!

About the only way to prevent vacuum, without drilling holes (which,
I agree, would defeat the purpose of the bucket), must be to prevent
them from forming the vacuum in the first place.

...try a tennis ball?