- Experts say that diet cola makes the highest geyser
- The Steve Spangler Geyser Tube makes a higher geyser than if you just drop Mentos in the bottle. Also, it's nice to be able to start the geyser from a safe distance away, so you don't get sticky.
- While Mentos make the very best geyser, bumpy Nerds jelly beans are a good runner up, because of the extra surface area.
This experiment has been around for years, and there are lots of fun versions of it on the internet.
- In 2005, Steve Spangler turned this experiment from a science classroom standard into an internet phenomenon with his original Mentos/Diet Coke video.
- Eepybird has done amazing feats with Mentos/Diet Coke such as this fountain or this appearance before Blue Man Group.
- Mythbusters explores the Mentos/Diet Coke science