I found another place to attach another blinkie -- on my fanny pack! The other day, the blinkie on my helmet fell off when I hit a pretty good bump. I secured the blinkie on my helmet with a zip tie, so it should stay on now.

Here is a picture showing all three blinkies, and four reflectors on the rear. The three bright lights on the bottom, are actually reflectors on my basket!!! I found really good reflectors, both red and amber, at two local auto parts stores (4 3/8" x 1 7/8").