Hypomorph
From Tardis Wiki, the free Doctor Who reference
A hybrid carnivorous hypomorph is a creature whose DA is capable of absorbing and using surrounding proteins, minerals and vitamins from other lifeforms in order to regenerate its form. Once a new form has been grown the creature has a ravenous appetite for flesh.
When a Hypomorph drew on the ingredients inside an ice cream shipment aboard the SS Greensleeves it took the form of a giant blob of vanilla icecream that needed an increased temperature in order to be mobile. It was ultimately lured into space where the temperature froze it into a solid scoop of lifeless ice cream drifting through space.
(DWA: I Scream)