I found these while looking for something a bit more reliable than cheapy 3-cell LED lights for car kits. These are blister packs with the nylon holster, 2 Duracell AAs, and 2 extra xenon bulbs (as well as 1 in the light and 1 in the tailpiece). Not as bright/great as their LED stuff, but more than adequate for backup.
Check brickseek to see if the stores in your area still have stock
There are multiple SKUs based on color; here are the ones I located so far:
- 14321409 - red
- 14321408 - black
- 14321410 - blue (mine was purple?)
- 14321407 - gray
In my walmart these were near the firearms counter, clearly marked at $5; The walmart.com listings showed them at $7.82.
Link for reference only: