Interventions under ultrasound control are more and more popular. There are several options how to train the skills of controling the needle with the probe. One of them is practising interventions on “phantoms” – ranging from high-tech ultrasound models to a DIY jelly like this one. Jelly “phantom” can hide all sorts of things within – from kiwi fruits, grapes or tomatoes, to boiled eggs, catheters and balloons filled with water. In this article you can find a “recipe” how to prepare your own training phantom.