Here's the official Carbonite-Frozen Han Solo Chocolate Bar just because I love you. George Lucas has no shame. And sometimes I don't care. This 4.5-ounce dark chocolate measures six inches in length. For £7.60, Leia approves (see below). [Think Geek]
Update: As commenter Invertsky pointed out, shipping is £15 from the US for this chocolate bar. While I can't see any UK stockists of this treat, you could always buy the Han Solo carbonite mould from Firebox, and make chocolate bars yourself like so.