Snarky,

For a headlight, since you have that nice mounting point down low on the fork blade for the rack strut, I would get a mount from VO that will bolt right up to that, and would then accept a standard headlight with handlebar clamp. Or, save the $25 and make your own version of what VO sells, using a piece of handlebar stock, like I did for my wife's Soma (or simply ask me nicely to make you one ). The Cateye that I'm using is on the expensive side (~$40), but you can mount any handlebar headlight to it, since it is made from, um, handlebar. I think it looks pretty classy and would look fabulously integrated if mounted to your Viva's fork mount:





[image via lovely_bicycle!]



For a rear taillight, I would recommend going in one of two directions:

1) (preferred option) Buy a fender-mount taillight such as this Spanninga battery LED taillight, and mount it to the fender. It's fairly classic looking, and I think it looks great on my wife's Soma mixte. It can directly replace the rear reflector on the Viva, using the existing mounting hole. It's only $16 from Peter White Cycles, who seem to be the only ones in the US that sell this light:



[image via lovely_bicycle!]


[image via lovely_bicycle!]



2) make your own mount using two small nylon "R" clamps and a piece of inner tube, and mounting a standard taillight to the rack, as I did on my Bike Friday Tandem: