In the past few years, we have covered plenty of gorgeous plasma lamps and glass mugs here. This Plasma Glass Mug by Barracuda Glass is also well worth a look. It is a 240mm tall cup made with 3mm thick glass. It is filled with inert gasses that react around a tesla coil or electronic coaster.
This handblown double walled plasma glass mug is available for $375 on Etsy.