Ernie's LED smiley-face hat

In the episodes

• S1E5 · Ernie Glam▶Play from 00:08:53 · 5 mentions in this episode

  Ernie soldered LED lights to wires and a nine-volt battery to make a smiley face for acid house; Michael loved it and paraded him round the Tunnel

  FashionLight-up smiley hat