do they make strobe lights kits for models?

You could also try Radio Shack or some other electronics supply shop. They have blinking LEDs in various colors. Or tiny light bulbs and some simple on-off circuits you could solder up to make blinking/strobe lights. It is quite easy to do basic electronics. They have kits too.

Or something like this?

http://www.chimneyvilledecals.com/1liflkit.html

If you mean lighted (as opposed to just the light-bar fixtures), try:

http://www.code3customs.com/lights.shtml
http://www.miniatronics.com
http://www.ramrcandramtrack.com

You might try looking in the Walther's model railroad catalogs, as I seem to recall that they had some items in that area. There is something called a "Mars" lite that is essentially an oscillating white lite used on locomotives, and I've also seen kits for lighting up cars that you have on the layout. Unfortunately, I do not have any specific advice on which companies might be able to help you out.