Warning: if you screw up with this you could electricute yourself.

(sorry no plasma)

Step 1: Materials

for this you will need;

capacitor bank ( https://www.instructables.com/id/EV2MC84ZATERXTS1L5/?ALLSTEPS follow steps 1,2 & 3)
transformer thing (you can find them on many circuits )
straw regular or coffee

tools;

scissors
screwdriver
Duct tape

Step 2: The Coil

use the screwdriver to jam the ferrothing out
stick a straw through the new hole
if the straw doesn't fit uncoil the wire and wrap it around the straw

Step 3: Set It Up

use alligator clips to clip the leads from the capacitor bank to the coil ends
put a brad (ferrous) into the straw near the coil
charge the bank (the more capacitors the larger the charge time mine has 7 capacitors and take 5 minutes to charge)
flip the switch and fire