Screw the Flexi-Cap™ (the thing that looks like a toilet-plunger head with a hole in the middle) onto the top of a two-liter bottle of freshly-opened Diet Coke™. Put a roll of Mentos™ into the Flexi-Tube™ (the thing that looks like a condom). Squeeze a little air out of the bottle, and slide the Flexi-Tube™ and Mentos™ into the opening of the Flexi-Cap™, so the Mentos™ are in the Diet Coke™ bottle, separated from the liquid by the Flexi-Tube™, which is held by the lip inside the hole in the Flexi-Cap™.

Keep squeezing the bottle, and invert it into the clogged toilet, making a good seal with the Flexi-Cap™, as with any other toilet plunger. Relax the squeeze on the bottle, so the Flexi-Tube™ and the Mentos™ get sucked up into the bottle.

As the Mentos™ and the Diet Coke™ begin to react, press firmly on the base of the two-liter bottle, to hold the Flexi-Cap™'s seal against the toilet.

The pressure of the foaming mix of Mentos™ and Diet Coke™ will blast out any clog, as long as a good seal is maintained. So hold on tight!

The foaming Diet Coke™ will clean away stains just as Coca-Cola™ does, while the Mentos™ will leave the toilet smelling minty fresh. Yummy!