NeoPixel RGB Neon-like LED Flex Strip with Silicone Tube [1 meter] : ID 3869 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Aluminum Channel for LED Flex Strip - 5 PACK – Waveform Lighting
Amazon.com: Foxdam Flexible LED Strip Lights,300 Units SMD 5050 LEDs,LED Strips,Waterproof,12 Volt LED Light Strips, Pack of 16.4ft/5m,for Holiday/Home/Party/Indoor/Outdoor Decoration(White) : Home & Kitchen
LED Ribbon Flexible Strips - 12 volt DC, 12 Inch, Water Resistant Version, Black Backing, 12 inch Red/Black Power Connectors, Super Bright and Flexible. Endless uses!