Thruxtonone I've been considering using those Rizoma signals, but didn't know how bright/visible they would be. Are the bulbs hardwired or do the signals have a standard 1157 or 1156 socket?
How about using an LED light to increase brightness?

These types of LED bulbs are between $10 and $15 each, fit into a standard socket, but may also require a resistor to function correctly. I gotta do something to get rid of the stock plastic lights, but I still want to be seen.
Thanks for sharing your experience with those signals. Your solution is clever, though I'd be worried about the bulb top being exposed to damage without a cover.