On some of the other large-scale forums, I’ve seen discussions about Walgreens selling sets of warm white LEDs for $5 a box. If you’re in the Midwest, Menards stores are selling sets of similar lights for about the same price (on sale). Menards also has small sets of multi-colored (red, green, yellow) LED, battery-operated lights (two sets per package, on sale for about $5). Check 'em out for cheap lights!