I promised I'd show you our Jacob's Ladder so here it is. (It's those two bits of white flame between the pumpkins.) Let me explain how it is made. In our business we use transformers to excite the neon in outdoor signs. The transformer turns 120 volts into 12,000 volts causing the electricity to jump quite a distance. So by taking an old transformer, attaching some coat hanger wire to the leads and bending them close together, then up and slightly further apart we can cause the current to zig zag its way up the wires just like Frankenstein's lab. THIS IS DANGEROUS! If you make one, NEVER leave it unattended, use in well a ventilated area, unplug it and allow it to cool every half hour, and NEVER let anyone touch it. In fact, don't even get close to it while it's on. It's my idea of a really cool Halloween decoration: spooky, dangerous and a touch of weird science.
Here is Teen2's costume. She is Edward Elric from Full Metal Alchemist.