Star Wars - or 'the franchise' as it's known among the aficionado - is one heck of a machine, even for those of us who think we know a thing or two about tie-ins, merchandising and gadgetry. It's a full thirty years since the childhood-defining movie went into hyperspace (you may count the years if you wish, but I wouldn't recommend it) and, let me tell you, we're still amazed by the ingenuity and quality of the industry that's grown up alongside it. Take these Chubbies, for instance. No. Nothing to do with Teletubbies. One can forget that straight away.

They're a half-Russian-Doll-half-Star-Wars-Doll hybrid made from robust PVC, in which one doll sits inside another in the usual fashion. What makes these unique, not to mention highly collectible, is that as you travel inside the doll, it reveals the character in an earlier stage of development. It's as though we are seeing it travelling back in time to its very origins. Clever. Take ageing Jedi Obi-Wan Kenobi. We first see him as the padawan of Qui-Gon Jinn. Next, in his middle years he has completed his Jedi training and has matured in appearance, playing a key role in the clone wars and defeating his apprentice Darth Vader.

Finally, in his outer incarnation, we witness the classic Obi-Wan of old, complete with hooded cloak, lightsaber in hand. Evolutionary.