I'm sure I've mentioned this one before
but before I die - and I do mean directly beforehand - I want to go up on a roof with a rope, some glue and a sharp object, tie my feet to the roof, glue my hands to my head and step through said sharp object at neck height so hard that I end up dangling just above the pavement with my own decapitated head held in my hands and oggling passing shoppers.
If you're gonna commit suicide, at least make it interesting, right?
Sadly for many (news services, ghouls, my many detractors etc), I have no intention of doing this any time soon.
(Falstaff's Spiritual Successor, Wed 20 Oct 2010, 19:51, 3 replies)

Erm
So how are you going to chop your head off without also removing your arms,if they're glued to your head?

Obviously, there are ways, but it's all a bit awkward, and all the ones I can think of would involve you having a very short runup to the sharp object,making it unlikely you could manage a full decapitation.
(SnowyTheWereRabbit the Leporid from Hell, Thu 21 Oct 2010, 0:04, closed)

A cheese wire noose applied before sticking hands to head.
(Mensa Reject has gone out, I'll be back on, Thu 21 Oct 2010, 2:49, closed)

Or two chainsaws angled in a V through the gap between my arms and neck.
Or an associate?
(Falstaff's Spiritual Successor, Thu 21 Oct 2010, 9:07, closed)