The thread about the spaceframe Moulton (slaver, drool) reminded me of something I'd almost forgotten; the fact that I have two Moulton Mini's sitting in the back of my garage. I got the pair for £8, the gold one (a 3 speed, if memory serves, though I suppose it might be 4) is useable, but the rack is broken. The other is covered in stickers, and is in need of a complete strip down, but still has the rack. I'm thinking that when I'm done with my 20, (and perhaps I've completed a couple of other projects that are half done), I'll turn my attention to these. Having checked, it seems they run the same rim size as Brompton, so rims and tyres are readily available.
I though I might build the one with the rack still on it into a reasonably faithful but mildly warmed over restoration. I'm thinking a respray, alloy rims (I can't remember if they have alloy or steel at present), a Brooks, but perhaps replacing the AW with an FW four speed, or even one of those twin chain 5 speeds. This would be a period appropriate upgrade, but give it a bit more useability.
With the gold one, I'm thinking maybe I'd just clean it up, and build it into some sort of speed machine. It's already lost weight by losing the rack, and is never going to be "perfect" because of that. I'm tempted to imagine fixed gear, but I suppose a derailleur system could work. That, and Schwalbe Stelvios perhaps. I can't think of a reason I'd need either of these bikes, really, but they could be fun. Anyone got any experience?