Yesterday we took the Popemobile out for a spin, so today we might be in trouble.

For instance, if you tried to take the current Popemobile out, throwing 300 Euros at some Italians shouting “it’s OK, I’m just renting it!”, you may find yourself in a jam today.

Which is why today’s Advent Calendar contains the Sparrow un-cufflinks.

These are cufflinks that double as a key for handcuffs, to help get you out of these sticky situations.

(Disclaimer: It is to be anticipated that the police won’t appreciate how clever you are, and using these might get you in even more trouble.)

One of the great things about living in the United Kingdom is the popularity of cufflinks.

In Canada, cufflinks are a rare thing — you would have to search for a shirt that required them. But here in the UK, cufflinks are standard. Shirts that require them are as common as those that do not.

And men, apparently, love their jewelry.

Of course, not all cufflinks are created equal. The ones below are clearly superior to the average cufflink.

These cufflinks are actual functional lighters, and available for 22.99. Presumably USD:

Tend to find yourself out and about, with bottles to open and no bottle opener? Then these bottle opener cufflinks could be the links for you:

Are you a Trekkie? No? Perhaps a Trekker, then? If so, you may want to drop $40 on these Star Trek cufflinks:

Perhaps you’re a roleplayer and proud. So proud that you want to wear your dice on your sleeve. Here you go. I like how the description mentions that they are blue — it makes me think that they are available in other colours:

Car enthusiast? Don’t let the geeks have all the fun cufflinks — there are some for you, too:

And, of course, there is always Pac Man:

Most of the above cufflinks were found via two blogs: BoingBoing and Cool Material.

Many thanks to authors at both sites for being far more obsessed by cufflinks than I am.