This is what I have so far:
Picture with and without photo-flash.
Front center: 3 Watt LED spot (CREE XR-E R2) with modified optics to get some suppression of the 'above the horizon' light and increase side visibility.
Front left and right: Small 5mm LED based lights (modified flashlights) to show the width of the bike to oncoming traffic. Main attribute is low mass, because the mudguards can not support much.
Tail: Europe standard reflector/ taillight combi with 1 Watt red (Luxeon-like) LED retrofit.
Spanninga ARCUS XB.
Power comes from 2x Li-Ion batteries - still need to make a waterproof battery pack.
The flag is a slightly modified delta-kite. The kite supplied the flag and fiber rods for the flag post. An ANSI vest was the donor for the reflective material on the flag. I Had both lying around unused, would probably order a
'Purple Sky Flags' flag if I had not.
No light on the flagpole yet, still thinking about how to solve that, no need to hurry as temperatures are still around 0° C in the morning over here, so I prefer to ride my Strada VM
Tires all have a reflective stripe as is required over where I live.