LilyPad sewable – just like a regular 5mm LED, but sewable + built-in resistor
Flora neopixels – how to use them – they work differently than regular LEDs. They are RGB, individually addressable and don’t require external battery unless driving a ton.
package of 5mm LEDs – regular 5mm domed LEDs, great for prototyping
LilyPad sewable RGB LED – just like your average 5mm RGB LED, but sewable.