Quantity   Component name
1 × Visor-style sunglasses A pair of sci-fi looking sunglasses picked up at a bargain store for $4.
1 × Laser Line A 3V Laser with a lens that produces a line output. Picked up on eBay from China for around $5.
1 × Arduino Teensy 3.0 Used for control circuitry. Purchased from the PJRC website for $19.
1 × Wire Miscellaneous wire, very small gauge - any good workshop should have plenty of this!
1 × Heatshrink Various small-sized single-wall heatshrink for tidying wiring.