I've watched and seen John Kennedy's Mojoe and I thought that it would be a good idea to share my thoughts on this effect.
This is a strong close up effect where the magician takes a hot cup of coffee, sips it, then in front of everyone, covers his hands on top of the cup and overturn the hot coffee onto his hands. The spectators are surprised that his hand is not burnt... then they realised that the coffee is gone too.
Mojoe Video ClipThere are various handling to this effect that are better than what is show in the demo video. Especially so since it allows you to end cleanly and hand out the cup for examination.
For example, one variation taught in the DVD is how you can cover the top of the cup with a serviette, wave your hands a few times over it, and then remove the napkin to show that the cup is now empty. Another variation allows you to place the serviette on the coffee cup, wave a few times, and show that the coffee is gone and in its place, is a whole handful of coffee beans. Very strong. You end clean and can even hand out the cup for examinations.
Typical of most of John Kennedy effects, Mojoe is quite expensive; but it's also a great effect to perform in close-up situations or when you are out at Coffee Bean with a friend.
The effect can be performed using other liquids beside Coffee. E.g. Coke, Milk, etc.
The effect is relatively easy to perform and works with both paper cups (e.g. Starbucks hot coffee paper cups) or the normal coffee mugs you have at home. There is a quick set-up for the effect. You can even sip on the coffee before making it disappear.
There is no switching of cups whatsoever, and neither is there any messy plastic bags or tubes. No refills needed.